Periods after pregnancy: Understanding lasting cycle changes

Nothing in this article is or should be construed as medical advice; for any medical questions, consult your healthcare professional.

Pregnancy is a life-altering experience in so many ways. Yes, your postpartum experience will likely include sleep deprivation and diapers —  and changes to your body after carrying your little one. This often includes your menstrual cycle, though it’s a change some women don’t expect until they experience it. From shifted cycle lengths to different PMS symptoms, what should you expect in your periods after pregnancy? Why is your period lighter or heavier after being pregnant? How does breastfeeding affect your period? Whether you experienced a pregnancy loss or birth of a child, let’s see what a menstrual cycle post-pregnancy might look like.

How can your postpartum menstrual cycle look different?

The fourth trimester —the first three months of postpartum—is a time of enormous, intense recovery. After all, your body grew an entire tiny human! As you discover what your new normal is, you may wonder how your cycle will change after pregnancy. Like many postpartum changes, it depends on your unique experience. But in general, there are a few common patterns women experience with periods after pregnancy.

Bleeding after giving birth (lochia)

First, it’s important to note what isn’t a period. Whether you give birth vaginally or via C-section, you’ll likely experience bleeding for two to three weeks afterward, with the possibility of bleeding lasting up to six weeks.¹ This may feel like a heavy period, but it’s actually a mix of blood and uterine tissue called lochia.¹ Lochia may behave like a period, with heavier bleeding that gets lighter over time and cramping as your uterus shrinks back down.¹ Since you aren’t ovulating regularly yet, lochia is not a true period¹, but it’s worth keeping an eye on as you recover. If the bleeding seems excessive or has a foul/sickly smell, see your healthcare professional right away. 

Your period after pregnancy: If you don’t breastfeed

If you don’t breastfeed (or reach a stopping point — more on this later!), your menstrual cycle may go back to how it looked before pregnancy.² Your first period after pregnancy may arrive anytime between two and 12 weeks after you give birth, although this depends on how long bleeding lasts after birth.² Most women don’t get their first period until at least six weeks after giving birth.² For some postpartum moms, getting back to “normal” isn’t so straightforward. You may have longer periods with heavier flows and increased cramping; this can happen because your uterine cavity may be slightly larger after pregnancy, producing and shedding more endometrium (the lining of your uterus).² Alternatively, you could experience shorter, lighter periods or decreased PMS symptoms due to pregnancy and childbirth stretching your uterus and dilating your cervix.²

Of course, recovering after a pregnancy isn’t a linear journey. There are exceptions, especially if you have pre-existing health conditions. For instance, women with endometriosis may have temporarily less painful periods after their baby is born due to the increased levels of progesterone from pregnancy.² Your healthcare professional should be able to discuss how your health history may impact your postpartum menstrual cycle. 

Your period after pregnancy: During breastfeeding

Are you planning to breastfeed your little one once they’re born? If so, you may not have a period while doing so. If you breastfeed, your period will likely not come until your baby starts weaning, although less frequent breastfeeding or combining breastfeeding with bottle feeding may also accelerate the return of your period.¹ Your levels of prolactin — a hormone that helps your body produce milk — will decrease once you stop breastfeeding.¹ The hormones that regulate your cycle, estrogen and progesterone, will increase and it’s likely that you’ll start ovulating and menstruating again.¹

Your period after pregnancy: After a miscarriage

Navigating the grief and loss of a miscarriage takes a toll emotionally and physically. Most women get their periods about four to eight weeks after symptoms from the miscarriage (such as bleeding or cramping) subside.³ It can take a few months to settle back into your “normal,”³ so don’t be alarmed if your period isn’t the same for a while. It’s possible for bleeding from a miscarriage to look just like a normal period if the miscarriage happened early in pregnancy. However, if you notice your bleeding intensifying in the weeks after a miscarriage, or if your intuition tells you something is wrong, contact your healthcare professional immediately.

It’s also worth noting that a first period after pregnancy loss can be triggering. Try to establish healthy coping strategies for when the time comes, whether that’s finding comfort with a chosen support person or intentionally getting out of the house for a movie or meal.

Tracking your periods after pregnancy

Remember, your first period after pregnancy may take between two and 12 weeks to arrive,¹ so getting an accurate sense of your new fertility window may take months. Tools like the Clearblue® Period & Cycle Tracker App or Clearblue® Ovulation Tests can help you make sense of the data. 

Rediscovering your body and cycle after pregnancy

With the profound changes your body experiences after pregnancy, you might feel emotionally drained, exhausted or frustrated as you try to understand your menstrual cycle again. After all, you just want to feel like you as quickly as possible. But try to be gentle with yourself during this time. Your body has done so much and deserves extra grace as you rediscover your reproductive health through your postpartum journey. You are worthy of that patience and self-love.

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