Table of contents
1. Why does this happen?
2. For some, their first postpartum period can go on for much longer than it should.
3. As well as changes to my cycle, I also noticed my PMS was worse after having a baby.
Illustrated by Sabrina Bezerra, Erin Rommel & Ralitza Nikolova
After 9 months of no periods, nothing says ‘welcome to motherhood’ like than that first postpartum period. In fact, once you’ve given birth, bleeding begins right on schedule - whether you’ve had a vaginal birth or a cesarean section. This bleeding immediately post-birth is called lochia and is the way your body naturally gets rid of excess uterus tissue that it needed to house a tiny human for the last nine months. This lochia isn’t actually a period, instead, it’s a bloody discharge that lasts anywhere from ten days to a few weeks.
Once that’s over (thank goodness!) most people find their period restarts about 6-8 weeks after birth, but it can sometimes take much longer (up to a year) if you’re breastfeeding.

Whether it’s mere weeks or closer to a year, anyone who's been there will tell you that the first period after pregnancy is probably up there with your first-ever period as the most uncomfortable experience. I’d heard whispers from my antenatal group chat that the postpartum period wasn’t fun but wasn’t expecting just how heavy and painful it would be, all whilst trying to take care of another human at the same time with barely time for a shower. And I wasn’t the only one. “My first two periods after having my daughter in November were so bad I actually called my doctor. I was soaking through nighttime pads after ⅔ hours,” explains Heather Waldron.
Why does this happen?
“It is likely your first few periods will be different to before your pregnancy, while your body is again adjusting to menstruation and your menstrual cycle hormones are being produced again. It is common for women to report heavier, and more painful periods, with increased cramping and sometimes irregular cycle lengths. This is often as any residual endometrial (uterine) lining needs to come away after your pregnancy and also because the womb (uterus) has been stretched to accommodate your baby it may be larger than before, with more lining to shed.” explains Dr. Ellie Rayner, Obstetrician, and Gynaecologist and founder of The Maternity Collective.
Some women may have also started contraceptives at their 6-week postpartum check-up which can also affect your menstrual cycle. Whilst those who conceived whilst on or after only just stopping hormonal contraception, may not be used to a contraceptive-free period, which tends to be heavier.

For some, their first postpartum period can go on for much longer than it should.
If that’s the case, it’s important to speak to your GP to see if anything else is going on, as Anna Cargan, who runs the preloved kids' clothing store Build a Bundle, found. “My first post-baby period lasted twelve weeks and was horrendous. I became anaemic-I eventually found out that it was due to some sort of retained placenta which I had to go into hospital to sort,” she explains. “This is why it is really important to seek medical advice if you have very heavy bleeding or large clots or if any of your loss smells offensive, as this may be a sign of some remaining pregnancy tissue or infection that needs further treatment” explains Dr. Ellie Rayner.
However, in other cases, there is no real obvious cause for a severe postpartum period. Ruth Chubb, who runs Three Bears Cookery Club, experienced this after the birth of her third child. “I had a horrible experience whilst, out shopping, I lost a hell of a lot of blood. The bleeding just didn’t stop and I had to try different medications to stop it. Doctors never knew why it happened.”
Whilst you might just get back on track with your old monthly cycle after that first period, you may alternatively notice that changes stick around for good: it’s quite common for us to experience a new menstrual cycle after having a child; whether that’s lighter, less painful periods, a different cycle length or more painful, heavier periods.