Your 9 months Pregnancy You're 36 weeks pregnant You’re nearly there now as you enter your 36th week of pregnancy 1 of Ad break How big is your baby?Your baby’s about the size of a watermelon. He’ll be 34cm crown to rump by the end of the week, or 45cm from top to toe. While you baby won’t get too much longer between now and the end of your pregnancy, he will keep gaining weight.Now find out how your baby is growing… How is your baby growing?Your baby’s kidneys are developed, and his lungs are mature enough that if he were to be born now, he could probably breathe without help. This ability to breathe is dependant on his lungs having enough surfactant to help them expand. He might be able to recognise your voice, and can probably hear the difference between you and other sounds. If he hasn't already your baby may drop or 'engage' this week, when his head enters the pelvic cavity and presses on your cervix. In first pregnancies this usually happens 2-4 weeks before birth although with second births it generally occurs just before labour. Now find out what your body is doing… What’s happening to your body?The new position your baby is now in may provide some relief. As he moves downwards the pressure on your stomach and lungs will lessen and allow you to breathe more easily. However, baby will now be putting more pressure on your bladder, so you’ll be hopping to the loo more often (not literally!) and are more likely to have stress incontinence. Those pelvic floor exercises can really help here! The change in weight distribution can also throw your balance off, so don’t be surprised if you’re more clumsy that usual. Learn more about what symptoms to expect this week and check out our week by week pregnancy guide... Find out how your baby grew when you were 35 weeks pregnant and how he will continue to grow in your 37th week of pregnancy. By Sara Mackenzie Comments Latest on MadeForMums Princess Marie-Chantal’s touching support for Kate Middleton (Exclusive) Danielle Lloyd's luxury pram pick for baby no 4 Rochelle Humes' divisive method for clearing her baby's bunged up nose Viral wedding invitation tells guests: "Breastfeed in the toilets!"