Breastfeeding During Pregnancy: What You Should Know
Are you pregnant and wondering how that might affect your breastfeeding relationship? Here is some information to consider:
So…you just found out you’re pregnant and you’re still breastfeeding. Cue the questions, the Google searches, and the “what now?” spiral.
First, take a deep breath — you are not alone. I hear from moms all the time who are surprised to learn they’re expecting while still nursing a baby or toddler. It’s more common than you might think!
Whether you’re wondering if you can get pregnant while breastfeeding, trying to decide if you should wean, or just want to know what to expect, here’s the lowdown from an IBCLC who works with this all the time.
Yes, You Can Get Pregnant While Breastfeeding
Let’s start here, because this still surprises so many people. While breastfeeding can delay the return of your period (especially if you’re exclusively nursing and your baby is under six months), it’s not a guarantee against pregnancy. Your fertility can return at any time — even before your first postpartum period.
This is especially true if:
Your baby is sleeping longer stretches at night
You’ve started introducing solids
You’re pumping or supplementing with bottles
It’s been more than a few months postpartum
So if you’re not trying to get pregnant, it’s worth talking with your provider about birth control options that are breastfeeding-safe. And if you are trying? We may need to work with your feeding and pumping routine to support your hormones and maximize your chances.
Should I Wean Now That I’m Pregnant?
The answer? It depends.
For most women with healthy pregnancies, it’s perfectly safe to continue breastfeeding throughout pregnancy. However, there are situations where your provider might recommend weaning, such as:
A history of preterm labor
Unexplained vaginal bleeding
Uterine cramping or a risk of miscarriage
If any of these apply to you, it’s best to have a conversation with your OB or midwife and make a decision that feels right for you and your baby. You can also reach out for a virtual consult with my team to figure out the best plan moving forward or enroll in my workshop, Fuss-Free Weaning. It’s a great resource for navigating this time!
What Happens to My Milk Supply During Pregnancy?
Here’s the part most moms are surprised by: hormones, especially estrogen and progesterone, tend to drop milk supply. Around 10–12 weeks pregnant, many moms notice a significant dip. Some even dry up entirely.
Then, around the second trimester, your body switches back to producing colostrum - the earliest milk meant for newborns. It’s safe for your older baby to keep nursing, but some will wean themselves because of the taste or change in flow.
👉 If you’re nursing an older toddler, you might just keep going with some adjustments.
👉 If you’re still feeding a younger baby, you may need to supplement with previously pumped milk, formula, or donor milk to make sure they’re getting enough.
Always watch diaper output, weight gain, and general mood as indicators.
Morning Sickness + Breastfeeding = Rough Combo
If you're feeling sick just thinking about breastfeeding while pregnant…you're not alone. Nausea can intensify during nursing sessions, especially early in the day.
Here’s what might help:
Eat a quick snack (like crackers or toast) before nursing
Keep small snacks nearby all day
Try ginger mints or chews
Ask your provider about breastfeeding-safe nausea meds if it gets really rough
Your Breasts May Feel SO Tender
One of the most common complaints I hear from pregnant breastfeeding moms? The sore boobs.
Early pregnancy brings a surge of breast and nipple sensitivity, and nursing can feel uncomfortable or even painful.
Some things that may help:
Set gentle limits with nursing sessions (shorter feeds, fewer times)
Use cool compresses between feeds (you know I love Therapearls!)
Make sure your child is latching well to reduce irritation
Eat for Two (or Three)
You’re growing a baby and feeding a child — your body is doing a LOT.
This isn’t the time for restrictive diets or skipping meals. Aim to:
Eat nutrient-dense snacks and meals regularly
Prioritize protein, healthy fats, and fiber
Stay consistent with your prenatal vitamins
Need easy recipe ideas? The Milk Supply Kitchen has tons of nourishing options that work beautifully for pregnant and breastfeeding moms — and yes, they’re actually easy to make.
Hydration Matters Even More
It’s always important to drink water when breastfeeding,Milk Supply Kitchen but when you’re also pregnant? It’s essential.
Try to:
Keep a full water bottle with you at all times
Add a high-quality electrolyte if you feel drained or depleted
Avoid sugary drinks and excessive caffeine
Feeding Positions Might Need a Switch-Up
As your belly grows, you might find your usual go-to nursing positions feel awkward or even painful. That’s totally normal!
Try:
Laid-back or side-lying nursing (especially helpful for rest)
Using extra pillows for support
Nursing in a recliner or cozy chair with armrests
Listen to your body, comfort matters for both of you.
Want Another Baby Soon? A Note on Fertility
If you’re actively trying to conceive while breastfeeding, know that it can take longer for fertility to return. Some moms ovulate early postpartum, while others don’t until they fully wean.
To support fertility while still breastfeeding:
Track your cycles with something like TempDrop (code AFBREASTFEEDINGMAMA for 15% off). I personally use and love this tool!
Make sure you’re eating enough and not over-exercising
Optimize sleep and stress levels where possible
Consider adjusting feeding or pumping patterns to allow for hormonal shifts
If it’s been a while and nothing’s happening, you might benefit from a fertility workup or some gentle weaning strategies.
Final Thoughts
Breastfeeding while pregnant is deeply personal. There’s no one-size-fits-all answer — and that’s okay.
You might wean. You might keep going. You might feel torn in both directions. I’m here to remind you: you get to make the choice that feels right for your body, your baby, and your growing family.
If you ever need help navigating this stage, I’m here. ❤️
[Book a consult] or reach out anytime.
