Week 37

Week 37: And we're ready for take off!
Fetal development in pregnancy week 37:fetus in ninth month

It’s the calm before the storm. Changes in your baby's weight have leveled off with only a few ounces of fat added this week. At this point your baby should weigh in at around 7 lbs and 20 inches (with boys somewhat heavier and longer than girls). Happily, as far as internal organs go, they are now developed enough to function in the outside world although the oh-so-important immune system is still developing and will continue to do so after birth. With a large boost of antibodies provided by breast milk when nursing begins. Fighting infection and staying healthy should be well within their physical capacity when your little fighter is born.

And how's mom doing? Your health care provider will assess the likelihood of where you are relative to your upcoming birthing process—seeing as you’ve now arrived at that waiting phase that could turn into labor at any time. Various charming indicators such as loose stools, expelling your mucus plus (along with the bloody show – see week 35), a dilated cervix and increased Braxton-Hicks contractions are all signs that labor is only a few days away. The infamous water breaking may or may not be your first true indicator that labor has commenced. However, water breaks for only 15% of mothers and despite what Hollywood would have us believe, is more frequently just a slow leak rather than a large gush.

Be patient: if labor doesn’t start this week, or even next, keep in mind that only 4-5% of women actual deliver on their predicted due date. What’s more if this is your first pregnancy, you can expect to be anywhere from two days to two weeks late. You can distract yourself by keeping track of fetal movements, mostly to reassure yourself that all is well with your little miracle. In the off chance that movements do start to decrease substantially, try not to freak out and instead, call your doctor of midwife and discuss it with them.

If you still haven’t decided whether to breastfeed or not, here’s a good reason: some experts estimate that mothers excrete between 400-700 calories a day while breastfeeding, and to compensate, you should be eating roughly 500 extra calories a day (mmm that’s like one spoonful of Ben and Jerry’s ice cream).