Trimesters, Shmimesters

I've been trying to figure out when I can consider myself to be in the second trimester, since, I don't know, it seems like I'll be "more pregnant" or something when I'm further along? Anyway, I've read conflicting information about when the second trimester starts, varying from 12-14 weeks or so. In my search for the truth (it is out there!), I found a trimester calculator that tells you when your trimesters begin and end based on three different methods of calculation.

Here's the link: Trimester Calculator

And here is an excerpt from the webpage, especially for all my preggo sisters who may be wondering the same thing:

	The three basic ways to calculate trimesters
	There are basically three ways of dividing up a pregnancy into the three trimesters; they are by: Development, Gestation, Conception. They give different dates for when the second trimester begins and for when the third trimester begins. Your health care provider might prefer to use the Development method, while another Midwife or Doctor may use the Gestation method. I am sure they do that just to confuse pregnant women. Development: This uses actual developmental stages to divide up a pregnancy. From LMP to 12 weeks the embryo develops all the major organs and becomes a fetus. From 12 weeks to 27 weeks the fetus continues developing and reaches viability. From 27 weeks on the fetus finishes development and prepares for delivery. Here the second trimester begins at 12w 0d and the third at 27w 0d. Gestation: With this method you take the 40 weeks of gestation and divide by three. Here the second trimester begins at 13w 3d and the third at 26w 6d. Conception: This method is where you take the 38 weeks of post conception development, divide by three, and add two weeks. Here the second trimester begins at 14w 5d and the third at 27w 3d.

So for me, my second trimester began on July 2 according to the development method, will begin on July 12 according to gestation method, and on July 21 according to conception method. The real question is, does it matter?

Happy 13 weeks, little one, and for what it's worth, I say we're in our second trimester now!