Fertility

All You Need to Know About 12 DPO

Team Peanut3 months ago5 min read

12 DPO and wondering why TTC requires learning a whole new language? Don’t worry. We’ve got you.

12 DPO symptoms

So what does 12 DPO mean? 12 Days Past Ovulation.

12 DPO is a significant time when you’re trying to conceive (TTC) because it’s just before you reach the end of the Two Week Wait (TWW)—after ovulation and before finding out if you’re pregnant.

In this article 📝

  • What is happening at 12 DPO?
  • How many DPO do you get your period?
  • Is 12 DPO too early to test?
  • 12 DPO symptoms

What is happening at 12 DPO?

The thing about TTC is that no two experiences are alike—so while we’ll give you a general idea of what’s going on at this time, your experience of it will ultimately be unique.

Let’s get started.

How many DPO do you get your period?

If you’re going to get a period, it will arrive at about 14 DPO.

That’s because your cycle works something like this (bearing in mind that there’s no one-size-fits-all.

Cycles vary in both length and regularity. Your cycle is your own.):

  • Day 1 is the first day of your period.
  • Between Day 6 and 14, the lining of your uterus prepares itself for pregnancy.
  • Day 14 (or thereabouts), you ovulate, releasing an egg into your fallopian tube. The day after this happens is 1 DPO.

(So, 1 DPO = about Day 15 of your menstrual cycle.)

If your egg meets up with an eligible sperm, you might be at the start of your pregnancy journey.

As this 2013 study tells us, the likelihood of conceiving is at its max at Day 15 of your cycle, with a leeway of about two days on either side.

Between Day 21 and 28, you might be hyper-aware of time passing as you wait to see whether you’re pregnant.

If your egg is fertilized, it will become a zygote and attempt to implant itself in the lining of your uterus. (Remember all that uterine lining prep work earlier in your cycle? Yeah, that’s what it was for—to get ready for the zygote’s arrival.)

If this doesn’t happen, your hormones give the signal that it’s time to get ready to shed the uterine lining that it had built up.

Day 1 of your next cycle (about 14 DPO) is when your period starts.

That means that at 12 DPO (around Day 26 of your menstrual cycle), you’re pretty close to getting more info on your current pregnancy status—exciting, awesome, stressful.

Is 12 DPO too early to test?

You’re close—but for a reliable result, it’s worth waiting a few days.

That’s because at 12 DPO, you may get a false BFP or BFN.

A BFN? Sorry, what? Hold on to your TTC glossary, because here come more acronyms: 12 DPO BFN. You’re a pro at the DPO part. Now for the BFN. It stands for Big Fat Negative. BFP? Swap the negative for a positive. (If only it were that easy.)

Most pregnancy tests work by testing for the pregnancy hormone known as hCG.

You might get a false negative if you test too early, since you might actually be pregnant but your body hasn’t built up enough hCG yet.

On the other hand, a false positive can also occur for several reasons.

One possibility is a chemical pregnancy, which is very early pregnancy loss.

Other reasons for a false result are recent pregnancies and some fertility drugs because in both cases there might be extra hCG in your system.

12 DPO symptoms

If you’re pregnant, there’s a good chance you might be experiencing some pregnancy symptoms by 12 DPO. (Some of them look a lot like PMS symptoms though, so it’s hard to tell from symptoms alone.)

Pregnancy means some major hormonal shifts.

Estrogen and progesterone both rise during pregnancy.

Added to that, your blood volume increases by [up to 50% during pregnancy]9https://pubmed.ncbi.nlm.nih.gov/4075604/) and even at this early juncture, you may be feeling the effects.

Here are the common signs:

  • Implantation bleeding 12 DPO. If you’re experiencing 12 DPO spotting, it may be a sign that your zygote is busy implanting itself into the lining of your uterus. While implantation most commonly occurs around 8 or 9 DPO, you may still be feeling the effects at this stage. Implantation bleeding is typically light and pink-ish or brown-ish. (Period blood turns to a sort of merlot color after a day or two.)
  • 12 DPO cramping. Implantation and the changes that are happening in your body can all lead to cramps in your lower abdomen and back.
  • You need to pee. All. The. Time.
  • Your breasts score high on the sensitivity scale.
  • You’re tired.
  • You’re dizzy.
  • You have headaches.
  • You have nausea.
  • Your sense of smell is heightened.
  • You may have all sorts of fun digestive issues. Constipation and gassiness are particularly common.

Pregnancy can be hard. The TTC journey can be hard.

You don’t have to navigate any of it alone.

Reach out if you need support. There’s a whole community on Peanut for this exact reason.

(Oh, and if all the TTC terms are getting a bit much, here’s a cheat sheet for you.)

Further reading All You Need to Know About 13 DPO