Heartburn in pregnancy: why it happens and what helps
Why your stomach burns in pregnancy, what to change about meals and sleep, why bicarbonate of soda is not the answer and when heartburn needs a doctor.
3 min read
Third trimester
Week 30 of pregnancy
Your baby is the size of a cabbage. The fine hair on the skin starts to fall away and the baby is putting on fat.
Your baby is the size of a cabbage
- Length, head to heel
- ≈ 39.9 cm
- Weight
- ≈ 1.3 kg
Your baby this week
- Lanugo, the fine hair that covered the body, starts to fall away.
- The baby puts on fat and weight every week.
- The bone marrow now makes red blood cells on its own.
Your body this week
- You may get out of breath, as the womb presses on your diaphragm.
- Tiredness, mood swings and broken sleep are common.
- Your feet may swell, and some women find their shoe size goes up.
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Contractions, your waters breaking and the other signs that labour is starting, when to call the maternity unit and when to call straight away.
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General information written by the mam.al editors. Every pregnancy is different and sizes are averages; it does not replace advice from your doctor or midwife. Sources include the NHS week-by-week guide to pregnancy. NHS. Contains public sector information licensed under the Open Government Licence v3.0.