It is like that because you are technically pregnant 10 months if you do it by the months in the year, you are in you're 6th month all the pregnancy booka say the same thing :-)
So why do the weeks not go by actual months in the year. Doesn't make sense.
I'm on my second child and I have many pregnancy books that say the same thing! You can ask your doctor. On this site you can do a tracker. It will tell you what trimester your in and how far a long. Also if a smartphone you can download an app that will tell you.
U should ask ur doctor...u will get lots of different answers on here...it depends...doctors do it different sometimes
You just started your 6th month. I'm 24 weeks.
23-27 the sixth month
28-31 the seventh month
32-35 the eighth month
36-40 the ninth month
U r in ur 6th month.. It will complete at 26wks...
Your First Trimester:
1st Month = Weeks 1,2,3,4
2nd Month = Weeks 5,6,7,8
3rd Month = Weeks 9,10,11,12,13
Your Second Trimester:
4th Month = Wks 14,15,16,17
5th Month = Wks 18,19,20,21
6th Month = Wks 22,23,24,25,26
Your Third Trimester:
7th Month = Wks 27,28,29,30
8th Month = Wks 31,32,33,34,35
9th Month = Wks 36,37,38,39,40