Day 209 of 280, third trimester
You are 29 weeks and 6 days
Your blood volume won't peak for a few more weeks, but your circulation is working harder than ever.
71 days until your due date
Between weeks 25 and 35, your blood volume is likely to reach nearly a gallon and a half, about 25 percent more than usual, so your heart pumps harder and faster. Your blood vessels are as relaxed as they'll get and won't stretch any further for the extra blood. You may sweat more and your skin may feel hotter, the rosy glow many women have.
There's also much more fluid circulating, making all your body tissues thicker. It's common and normal for your face, fingers, and ankles to be puffy, but because puffiness can also be a sign of preeclampsia, have your doctor check it.
Ask a Doctor
I get short of breath very easily. Should I be worried?
No. In pregnancy, your lungs work much harder to meet your body's extra oxygen needs. Your ribs spread sideways and your lung capacity increases dramatically, which can make you feel breathless, especially from mid-pregnancy.
In the last three months, most women get breathless even with mild effort as the uterus pushes up against the lungs. But breathlessness can also be a sign of anemia, which may need treatment. Breathing may get easier once your baby engages (moves down into your pelvis ready for birth).
Focus on
Twins: Exercising safely
If you're expecting twins, vigorous or aerobic exercise isn't recommended in the third trimester, and you'll probably be too tired anyway. You'll also get bigger sooner, which may rule out some activities.
If you want to stay active, try gentle walking or swimming, or pregnancy yoga or Pilates, and check with your doctor before doing anything more vigorous. She'll monitor your babies' progress and may advise on activity if their growth slows. Always follow safe exercise guidelines.
Explainer
A changing face
Your face may change shape this trimester as you retain more fluid and gain weight.
Appointments and key dates around now
- Whooping cough vaccineUsually around 20 weeks, best before 32 weeks
- RSV vaccineFrom 28 weeks
Read the full 29 weeks pregnant guide
This is general information based on NHS guidance, not medical advice, and every pregnancy is different. Talk to your midwife or GP about anything that worries you. If your baby's movements slow down or change, or you have bleeding, severe pain or leaking fluid, call your maternity unit straight away. In an emergency, call 999.