I didn't expect it -- I used to have to take three bars to sleep. But last night I woke up at 4 am, put on sweatpants and an army jacket, and walked eight blocks to this deli that makes submarine sandwiches and got one, along with two Cokes, a Nantucket Nectars lemonade and two bags of chips.
Now, according to data from 2011, those born alive at 27 weeks have an 87 per cent chance of surviving, at 28 weeks it is 92 per cent and at 29 weeks, 95 per cent. It means that doctors are working on tinier babies, typically with more complications, than ever before.
To calculate the number of weeks you are, you simply start with the first day of your last menstrual period, also called LMP. So if the first day of your last period was January 1st, your first week of pregnancy is January 1-7th, though you are one week pregnant on January 7th as you complete the week. January 8-14th would be the second week, two weeks pregnant on January 14th. Your doctor or midwife may even count days. So for example, if you were, using the January 1st date, five weeks three days pregnant would be February 7th. If you were doing an early ultrasound to look for a heartbeat, you may not see much of anything, but wait a week, until after six weeks, around February 15th, and you would see a lot more.