Louise 
Common Third Trimester Symptoms to Expect
(And Why You’re Not Losing the Plot) The common third trimester symptoms can often make you feel as though you’re losing control, but rest assured these experiences are perfectly normal.
You’ve made it to the third trimester—congratulations! You’re officially in the home stretch. But while the countdown to meeting your baby is exciting, it can also come with a whole new wave of symptoms that are… less than glamorous. Common third trimester symptoms can be challenging but prepare you for birthing.
If you’re wondering whether it’s normal to be this tired, this emotional, or this breathless—here’s your answer: yes. 100% yes.
Here’s a rundown of the most common third trimester symptoms, what’s behind them, and when to check in with your midwife.
1. Backache and Pelvic Pain
As your bump grows and your centre of gravity shifts, your lower back and pelvis can take a real hit. The hormone relaxin is also working hard to soften your ligaments in preparation for birth—which is great, but it can leave everything feeling a bit wobbly. These are common third trimester symptoms you might face.
Tip: Use supportive cushions when sitting, avoid heavy lifting, and try gentle pregnancy stretches or yoga. If it gets intense, ask your midwife about physiotherapy or support belts. SPD (pelvic girdle pain) is real, and you deserve support.
2. Frequent Weeing (Yes, Again)
Just when you thought your bladder had a break—here comes the baby, head-down and using it as a trampoline. You might find yourself weeing more often, especially at night. Another common third trimester symptom to expect.
Tip: Stay hydrated during the day but ease off just before bed. And remember: sudden pain, burning, or very dark urine should be checked with your midwife—it could signal a UTI.
3. Swollen Ankles, Hands or Face
A bit of puffiness is very common, especially by the end of the day or in warmer weather. It’s caused by increased fluid in your body and the pressure of your growing uterus on your circulation. Swelling is often a common third trimester symptom related to circulation changes.
BUT: If the swelling is sudden, severe, or accompanied by headaches, visual disturbances, or pain under your ribs—get checked immediately. These can be signs of pre-eclampsia, which needs urgent medical attention.
4. Heartburn and Indigestion
That lovely hormone progesterone, which keeps your uterus relaxed, also relaxes the muscle that keeps stomach acid in its place. Add in a squashed stomach thanks to your growing baby, and hello, heartburn.
Tip: Eat little and often, avoid spicy or rich foods in the evening, and don’t lie flat straight after eating. Some women swear by sipping milk, others use over-the-counter remedies (check with your midwife or pharmacist first).
5. Shortness of Breath
Feeling puffed after climbing the stairs? Totally normal. Your lungs are a bit squashed, and your blood volume is higher than ever.
BUT: If you’re struggling to breathe at rest, have chest pain, or feel dizzy or faint—get checked. Better safe than sorry.
6. Leaky Boobs
Yes, already! Some people start producing colostrum (your baby’s first milk) in the third trimester. It might show up as little wet patches on your bra—or you might notice nothing at all.
Both are completely normal.
Tip: If you’re planning to harvest colostrum before birth, wait until you’re past 36 weeks and check with your midwife that it’s OK for you to do so. Our Colostrum Harvesting Kit makes it simple and safe.
7. Braxton Hicks (Practice Contractions)
Your uterus is getting in some rehearsal time with mild, irregular tightenings that don’t usually hurt. Think of them as your body’s way of warming up for labour.
Tip: Stay hydrated and change positions. If the tightenings become regular, painful, or don’t go away, it might be the real deal—contact your maternity unit.
8. Emotional Rollercoaster
Between hormones, physical discomfort, and the reality of what’s coming—your emotions can go everywhere in the third trimester. From nesting frenzies to random crying over dog videos, it’s all part of the ride.
Tip: Be kind to yourself. Talk to someone if it’s all feeling too much. Anxiety and low mood in pregnancy are common—and treatable.
9. Difficulty Sleeping
You’re tired, but between the bathroom trips, bump discomfort, and vivid dreams, restful sleep might feel like a distant memory.
Tip: Sleep on your side with lots of pillow support, keep the room cool, and try a relaxing bedtime routine. Our Pregnancy Massage Oil can be a lovely wind-down ritual.
You’re Doing Better Than You Think
The third trimester can feel long. It’s heavy, uncomfortable, and a bit relentless. But it’s also a time of amazing preparation—your body is doing something phenomenal.
Common third trimester symptoms can be particularly uncomfortable, but understanding what they mean helps manage them.
If something doesn’t feel right—or even if you just need reassurance—speak to your midwife. That’s what we’re here for.
The Honest Midwife
Helping you feel calm, informed, and confident—one trimester at a time.
