https://boards.hellobee.com/ Pregnancy, Baby and Parenting blog, by Hellobee en Thu, 09 Apr 2026 05:04:33 +0000 https://boards.hellobee.com/topic/trimester-calculator#post-16186 Tue, 15 Nov 2011 18:54:15 +0000 Mrs. D 16186@https://boards.hellobee.com/ <p>@winniebee: I agree, I decided my second started as soon as I had completed 12 weeks, and my third will start next week when I've completed 26 weeks, which is the end of six completed months. </p> https://boards.hellobee.com/topic/trimester-calculator#post-15893 Tue, 15 Nov 2011 11:43:35 +0000 winniebee 15893@https://boards.hellobee.com/ <p>Haha, thanks! I have consulted all of these websites! And PS not even sure why I really care all that much. </p> <p>I think I decided for myself that the 2nd trimester starts when I'm 13 weeks pregnant (ie, the beginning of week 14) and ends when I'm 26 weeks pregnant (ie, the beginning of week 27). How's that for official? </p> https://boards.hellobee.com/topic/trimester-calculator#post-15888 Tue, 15 Nov 2011 11:38:22 +0000 Mrsbells 15888@https://boards.hellobee.com/ <p>Like all things pregnancy related, different experts have different opinions. I just stick to one site when it comes to stuff like this so I dont get confused. I use The Bump. </p> https://boards.hellobee.com/topic/trimester-calculator#post-15883 Tue, 15 Nov 2011 11:35:51 +0000 tequiero21 15883@https://boards.hellobee.com/ <p>well, i think there's a "gestational" age (which is 40/3) and there's the fetal age (38/3). i considered end of week 13 to be my 1st trimester. lol. whatever makes you feel better! </p> https://boards.hellobee.com/topic/trimester-calculator#post-15876 Tue, 15 Nov 2011 11:30:20 +0000 Mrs. Sunglasses 15876@https://boards.hellobee.com/ <p>Ha ditto! Well according to wikipedia, 2nd starts the 14week and the 3rd starts the 27th. </p> <p><a href="http://en.wikipedia.org/wiki/Pregnancy" rel="nofollow">http://en.wikipedia.org/wiki/Pregnancy</a></p> <p>I think wikipedia is pretty accurate ;) </p> https://boards.hellobee.com/topic/trimester-calculator#post-15873 Tue, 15 Nov 2011 11:25:41 +0000 cyndistar3 15873@https://boards.hellobee.com/ <p>Everything about pregnancy dates is confusing lol. </p> https://boards.hellobee.com/topic/trimester-calculator#post-15868 Tue, 15 Nov 2011 11:13:56 +0000 winniebee 15868@https://boards.hellobee.com/ <p>I'm so confused! It seems like every website that I look on says something different about when you start 2nd and 3rd trimesters.</p> <p>One says you start the 2nd trimester at 13 weeks pregnant the other says 12 weeks pregnant.</p> <p>One says you start the 3rd trimester at 26 weeks pregnant and the other says 27 weeks pregnant.</p> <p>Anyone have the real skinny on this? Why is it so difficult to figure out!? </p>