tag:blogger.com,1999:blog-3464065533231534866.post4383954711742728458..comments2016-04-01T00:08:14.213-04:00Comments on Confessions of a Rookie Parent: 12 weeks, 4 daysThe Conley Familyhttp://www.blogger.com/profile/16256087658382759838noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-3464065533231534866.post-19833834867073341592011-11-25T09:17:01.894-05:002011-11-25T09:17:01.894-05:00I was also confused by the whole when-the-trimeste...I was also confused by the whole when-the-trimesters-begin. But, the easiest way to figure it out is 40 weeks/3 = 13.3 days for each trimester. <br /><br />So at 13 weeks and 3 days is your first trimester...(starting your second at 13 weeks 4 days). At 26 weeks 6 days you're done your second trimester (so at 27 weeks you're in your third trimester).E.https://www.blogger.com/profile/00092025453010423341noreply@blogger.com