Home > Parenting > Pregnancy > Week-by-week Updated 08 October 2018 Week 17: 23 weeks to go! Your little one might have a growth spurt this week, which explains why you're gaining weight. 0 ASK The Paediatrician » Follow Health24 on Facebook » Quiz Are you ready for a baby? » Subscribe Parenting newsletter » How a woman's body changes during pregnancy Foetal development Happy 17th week!Your baby's progress:Your baby is going through a growth spurt this week as little brown fat deposits under the baby’s skin.The foetus and placenta are of equal size.The foetus weighs more than the placenta.Your baby sucks, swallows and blinks.Your progress:You will probably gain weight this week as your baby is going through a growth spurt.Your body may secrete more fluid, like sweat, nasal congestion and vaginal discharge as your blood volume increases.What to do:Exercise regularly – aqua-aerobics or swimming are great exercises. Speak to your doctor about which exercise programmes are suitable or safe for you.Good to know:Minimise heartburn by eating slowly, eating smaller meals more regularly, avoiding rich, spicy foods, chocolate, citrus fruit and coffee, and sitting upright after eating. NEXT ON HEALTH24X A weak grip may signal future health trouble, even in kids 2018-08-28 13:00 More: PregnancyWeek-by-week advertisement Read Health24’s Comments Policy Comment on this story 0 comments Comments have been closed for this article. Logout Comment 0 characters remaining Share on Facebook Loading comments... Live healthier Lifestyle » E-cigarettes: Here are five things to know E-cigarettes have become hugely popular in the past decade, but a rash of vaping-linked deaths and illnesses in the US is feeding caution about a product that's already banned in some places. Allergy » Ditch the itch: Researchers find new drug to fight hives A new drug works by targeting an immune system antibody called immunoglobulin E, which is responsible for the allergic reaction that causes hives.