PMS or Pregnancy Symptoms: What’s the Difference?

pms or pregnancy period or pregnantMost of us are aware of what pregnancy symptoms are. The media has shown us pregnancy is this obvious in-your-face change. In reality though, pregnancy symptoms can be far more subtle. Things like nausea, bloating, breast tenderness, discharge changes, food aversions/cravings, flatulence, mood swings, hot sweats, frequent urination, fatigue, and more can vary in severity. Of course, don’t some women get those same symptoms just before their period? Why is that? Is your body telling you pregnant or period? How can you judge, PMS or pregnancy?

What causes PMS or pregnancy symptoms?

The first question there comes down to understanding what causes both pregnancy symptoms and PMS, because the culprit is the same—hormones. In fact, it’s even the same hormone for the most part.

The second half of your menstrual cycle after ovulation (the luteal phase) is dominated by a hormone called progesterone. Progesterone’s job is to maintain the uterine lining for pregnancy before implantation and during pregnancy afterwards. It’s present in both pregnant and non-pregnant women. Progesterone concentration just becomes higher in early pregnancy. High progesterone can cause nausea, bloating, breast tenderness, discharge changes, food aversions/cravings, flatulence, mood swings, and hot sweats—a fair chunk of pregnancy symptoms. Essentially, pregnancy symptoms are just PMS on steroids, because progesterone levels are higher and also slowly joined by hCG (Human chorionic gonadotropin). hCG is the hormone that causes a pregnancy test to become positive, by the way.

So, how can you tell if it’s PMS or pregnancy then?

While there are a few pregnancy symptoms that are uncommon in PMS (frequent urination and fatigue), all sorts of things can cause those symptoms from the flu to a hot day. The real settling factor is actually time. Pregnancy symptoms won’t occur before a missed period unless you have an irregular cycle or a very long cycle. That’s the truth. There is absolutely no reason to stress over symptoms before a minimum of 8 days after ovulation or intercourse if you don’t know when you ovulated. As PMS occurs before your period, in almost all cases unless your period is late, your symptoms are PMS.

I know, especially for folks trying to conceive that is a hard answer to swallow, but hear me out. For your symptoms to be pregnancy related, you have to be pregnant. It takes a minimum of 6 days for an egg to travel and implant (making you pregnant), but the average is 8 to 10 days. After that, it takes time for hormone levels related to pregnancy to begin to rise (higher progesterone and hCG). You can’t even get a positive pregnancy test for about 48 hours plus.  With the average menstrual cycle at about 28 days, and ovulation frequent at mid-cycle, this means for the average cycle you aren’t even pregnant until the question of PMS or pregnancy becomes a moot point. This is why I recommend whether you’re hoping to be pregnant or praying you aren’t after an oops, that you disregard symptoms entirely until your period is due. If you’re more than 3 days late (3 days +/- is considered normal period variance), then just take a test. It’s a far easier answer than trying to analyze your symptoms and a lot less stressful.

What if your period is late or have long/irregular cycles?

Now there is an exception to that rule. In those that have irregular or long cycles, ovulation is often erratic. In which case, there may not be a firm period due date or periods may already be absent. Second, it is possible to have a late period without being pregnant. We also have a full page on missed periods with a negative test here. In both case timing goes out the window and a pregnancy test is going to be the only answer for you. If your symptoms are pregnancy related, unless you are much further along than you think you are, a pregnancy test will reflect that.

You might also find helpful:
When to Take a Pregnancy Test for Accurate Results
In-Depth: When Do Pregnancy Symptoms Start at the Earliest?
Early Pregnancy Symptom Quiz

When Do You Ovulate? Ovulation Symptoms, Prediction Tools, and Timeline

Ovulation—it’s like the holy grail of conception. You can’t get pregnant if you can’t figure out if and when it happens to you, sort of. I mean, you can actually take a cheater’s approach and just have sex every other day or so around mid-cycle. That’s when ovulation occurs for most. So, you’d think all you have to do is take your cycle length and cut it in half. Bam—estimated ovulation date. The problem there is, while easier, this approach is sort of shooting in the dark—but with sperm—and while that can be fun it can make conceiving take a while, because not all women ovulate mid-cycle. In fact, some women don’t ovulate at all. So, if getting pregnant quickly is your aim, when do you ovulate should be your first question.when do you ovulate

What is ovulation?

Chances are if the Google Gods led you to this page, you have at least a fuzzy idea what ovulation is, but for clarifications sake, ovulation is the point during your menstrual cycle when your ovary drops a fertile egg. You can only become pregnant in those 24 hours or so after ovulation while that fertile egg is in your fallopian tube. If sperm isn’t present in that time frame, the egg is shed along with your uterine lining during your period.

When do you ovulate?

As mentioned above, most women ovulate around mid-cycle. Dividing your average cycle length by two is a fair way to get a rough estimate of when you ovulate.

Example/ If you have a 26-cycle, you probably ovulate around cycle day (CD) 13 with day one being the first day of active bleeding during your menstrual cycle.

You can narrow this down to an average for you personally (I, for example, run a 26-day cycle, but ovulate around CD 11) by tracking your ovulation symptoms, utilizing basal body temperature (BBT) tracking, and ovulation predictor kits (OPKs). When trying to pinpoint ovulation, I then recommend the following tools for your conception toolkit:

-A good BBT thermometer. A regular thermometer will not give an accurate temperature shift. BBT can be used to confirm ovulation. I’ll talk a bit more about that here in a moment. I also have a full, more in-depth guide on how to track BBT here.

-An easy to use tracking app. I use FertilityFriend, but there are many combination BBT, signs of ovulation, and period trackers out there. You can also keep track on paper, but most find an app more convenient. For beginners apps can also prove easier, because they often will estimate ovulation for you based on the data you enter.

-A supply of inexpensive ovulation predictor kits. OPKs can be used to predict ovulation shortly before it happens. We will also cover that how in just a moment.

Ovulation symptoms: What are the signs of ovulation?

To understand ovulation symptoms and when and why they happen, it’s best to have a rough understanding of the hormones that drive your menstrual cycle. It’s these hormones that are behind most signs of ovulation.

At the start of your cycle (the first day of bleeding) your sex hormones (estrogen and progesterone) are both low. This signals the release of Follicle Stimulating Hormone (FSH). FSH is what prompts a follicle in your ovary to develop an egg. The development of this egg stimulates estrogen production which is the dominate hormone before ovulation in the follicular phase of your cycle. High estrogen then triggers Luteinizing Hormone (LH) to be produced. LH is the hormone that triggers ovulation. Ovulation stimulates the production of Progesterone, which dominates the second half of your cycle, the luteal phase. Progesterone maintains the uterine lining, and will drop if the released egg isn’t fertilized or continue to rise if it is.

Ovulation discharge:

Keeping the above cycle in mind, those hormones cause different cervical discharge changes. At the beginning of your cycle as estrogen is low, your discharge is probably non-existent to light, dry or sticky and acidic. This discharge is not very sperm friendly, but it does deter bacteria growth to protect your vagina from infection.

As estrogen begins to rise discharge becomes wetter, less acidic, and more plentiful (more fertile) finally reaching a stretchy, jelly-like consistency often described as “egg-white.” Egg-white discharge is a sign of ovulation.

when do you ovulate fertile cervical mucusFollowing ovulation as estrogen decreases and progesterone rises discharge often goes back to watery, followed by sticky or dry, and then bleeding if you don’t become pregnant. Some women also see an increase in discharge just before their period, and some women see watery discharge all cycle. It’s the stretchy mucus you’re watching for. On another note, thick yellow discharge at the end of your cycle can also sometimes be an early sign of pregnancy.

Cervical position and state:

Cervical position is a harder sign of ovulation to track. Your cervix actually moves up and down during the day, but if you check it at the same time every day, you may also notice a pattern within your cycle. Like your discharge, your cervix is affected by your hormones. During periods of low estrogen the cervix remains low, long, hard, and closed. You’ll probably be able to easily reach it, and it will feel sort of like the tip of your nose. As estrogen rises, the cervix does too, becoming shorter, softer, and opening slightly (note that those with previous children often always have a slightly open cervix). During ovulation your cervix will be hard to reach and feel more like your lips. Many women remember the signs of ovulation in regards to cervical position and state with the abbreviation SHOW: soft, high, open, wet (mucus).

when do you ovulate cervical position

OPKs:

Ovulation predictor kits are, like a pregnancy test, a stick that you urinate on. They detect LH which surges about 24 to 48 hours before ovulation. It’s important to note that unlike a pregnancy test, an ovulation test is only positive if the test line is darker than the control line. LH is present in your system outside of ovulation, so there will almost always be two lines. If you have trouble reading the cheaper line tests, there are more obvious (and expensive) smiley-face tests available. You don’t have to use these tests all cycle, just during your ovulation window. Until you narrow down your window more, I recommend starting at about CD 8. You can stop after ovulation. We also have a complete guide on using OPKs.

Ovulation pain:

Ovulation pain is not something everyone gets. In fact, only about 1 in 5 women experience pain at ovulation. Many describe ovulation pain as a twitching, pinching, or pressure in their lower pelvis closer to the right or left hip (this is where your ovaries are located). Ovulation usually occurs from just one side, and may not occur on the same side every month. If pain is felt on one side near your ovary near when ovulation should occur, you can consider it a sign that ovulation may be near or occurring caused by the growing follicle or the rupture of the follicle to release an egg.

However, keep in mind that cramping can often be mistaken for ovulation pain. As a general rule if it’s not lining up with other signs of ovulation or occurs on both sides, it probably is not ovulation pain.

Ovulating spotting:

Like ovulation pain, not all women experience ovulation spotting. Sometimes spotting is caused by the rupture of a follicle to release an egg. To put this in perspective, the average follicle is a mere 18 to 24 mm—or between the size of a dime and a nickle. Ovulation spotting of this type is very light.

Alternately, some women also get a slight hormone dip at ovulation, which can also cause light spotting. In those women, a temperature dip would also be visible on a BBT chart. This bleeding would still not be heavy or prolonged.

BBT:

You can read a full in-depth guide on tracking your BBT here, but briefly, your BBT is your temperature taken with a BBT thermometer upon first waking in the morning, before doing anything else. The rise of progesterone after ovulation will cause this temperature to rise slightly allowing you to confirm that ovulation has occurred and so build a more concrete average ovulation pattern. This rise is sometimes very small and a clear shift is hard to see. For other women it’s more pronounced and may even be visible using a regular thermometer.

Other signs of ovulation:

Finally, individual women may notice different signs of ovulation. Some women notice they crave certain foods or are more interested in sex. To pick up on signs like these you need to track ovulation for some time and really pay attention to your body. You’ll likely be more aware of post-ovulation symptoms as progesterone is the culprit behind PMS. Things like feeling hot, bloating, nausea, and back pain are all caused by progesterone which peaks after ovulation. This leads me to an important note. It is very, very, and a few more very’s common to mistake PMS symptoms for pregnancy symptoms. You will not get pregnancy symptoms before implantation. Period. You can explore the pregnancy symptoms timeline in more depth here as that is an entirely different topic.

We hope that our guide on when do you ovulate has proved helpful in your quest for belly fruit, and as always, welcome your comments, questions, and suggestions.

You might also find useful:
Conception Lingo
When to Take a Pregnancy Test for Accurate Results
Am I pregnant? Calculating Your Chances of Pregnancy

How Effective is Plan B?

The majority of women have heard of Plan B. It’s often simply marketed as this thing that you take any time you’ve had unprotected sex or a contraceptive failure—that is, if you don’t want to become pregnant—but how effective is Plan B really? What is Plan B, and how does it work? Are there side effects? What are they? Fewer women know the answers to these questions. Luckily, to fully understand how effective Plan B is, you need to understand what Plan B is and how it works so you learn the answers to all these questions.

Plan B effectiveness, how effective is plan b

Let’s start at the beginning…

What is Plan B?

Chances are, if you’re looking up Plan B effectiveness, you get that it’s a pill that helps prevent pregnancy, but to be more accurate, Plan B is a large dose of levonorgestrel. Levonorgestrel is a progestin that can prevent pregnancy primarily by preventing ovulation, but it may also prevent implantation.

How does plan B work?

Progesterone is a hormone that’s always present during your menstrual cycle. It maintains your uterine lining after ovulation. If you become pregnant, progesterone keeps you from getting a period. Plan B essentially mimics pregnancy by delivering a large dose of progesterone (levonorgestrel mentioned above) so that the body already “thinks” it’s pregnant, doesn’t ovulate, and instead continues to thicken the uterine lining. As this large dose dissipates, withdrawal bleeding occurs, which usually resembles a period.

How effective is Plan B?

Plan B effectiveness hinges on when you take it. The manufacture may tout it prevents 7 out 8 pregnancies, but realistically that’s likely only with perfect timing. Yes, Plan B must be taken within 72 hours, but there’s more to that story.

If Plan B is taken early in your cycle, it probably does have the suggested upwards of 89% effectiveness, but closer to mid-cycle, probably not, and after ovulation? It’s nearly a pointless measure. This is because you can’t prevent ovulation if it’s already happened.

After ovulation, all Plan B does is work to thicken the uterine lining more to prevent implantation. The later in your cycle you take it, the less effective it becomes.

So, when should you take Plan B, if at all?

The reason it’s generally recommended to take Plan B any time you’ve had unprotected sex and don’t wish to become pregnant is that not all women know when they ovulate. Honestly, if they did, they wouldn’t need Plan B because they would know if the sexual act occurred during a fertile time.

Pregnancy is actually only possible about one week out of the month. You have the viability of sperm at about 5 days, and the lifespan of an egg at around 24 hours. You can read more about your chances of pregnancy here, but long story short, in general, sex just before or just after a period is very unlikely to result in pregnancy. Sex mid-cycle has the highest chance.

Sadly, not all women ovulate mid-cycle. You can’t just assume if the sex wasn’t mid-cycle you won’t become pregnant and don’t need Plan B. It is actually possible to become pregnant from sex just after your period (when Plan B would be most effective). At mid-cycle when you’re most likely to become pregnant, Plan B will at least hinder implantation by thickening the uterine lining and subsequently causing withdrawal bleeding to thin it.

The only situation where we would say you’re probably just suffering side effects for no reason by taking Plan B is when the sex occurred in the final week before your period. Why?

First, ovulation has likely already occurred by a long shot. There probably is no chance of pregnancy, to begin with. Second, there is very little time to thicken the uterine lining. Additionally, if you are basal body temping and know when you ovulate, there is no reason to take Plan B unless you’re in a fertile period.

Speaking of side effects…

Plan B Side Effects:

Side effects of plan B are basically a ramped-up version of PMS but may also mimic pregnancy symptoms. These include nausea, fatigue, feeling hot, discharge changes, bloating, cramping, and gas. This is because, as stated back there on how Plan B works, you’re creating a hormonal situation akin to pregnancy.

However, the most common Plan B side effect is irregular bleeding. Enough so you can read an entire page on this topic here.

I hope this has helped answer your questions about how effective is Plan B, but if not, we welcome comments and questions here at Life with Gremlins.

You may also find helpful:

How Effective Are Condoms?
Pregnancy Probability Quiz
Period or Implantation Bleeding?