Per What To Expect.com at 12 weeks the baby was as big as a large plum, weighing in at only a 1/2 an ounce. By 16 weeks baby 3-5 ounces and is as big as an onion. My belly is getting rounder as the uterus is out of the pelvic bone, but it still just feels like bloating more than being pregnant.
In the last month I entered the 2nd trimester stopped having morning sickness and got my energy back. I also ran my 8k at 16 weeks pregnant for Thanksgiving, which you can read about that here. Running isn't too bad. During the 8k I had my first Braxton Hicks contraction and had to slow down and walk while it passed. I got them frequently when I was pregnant with Mason, it was always while I exercised. It also happened if I was walking too slow or too fast. It had to be just the right speed and I would not get as many. I suspect that I will continue to have them while I exercise.
I still have to nap during the day. I actually really like it. It is my quiet time to just relax and just take a breath. With the exercise I am doing I really need it.
Thankfully I don't have to go to the bathroom as often as I did in September or October.
Also I compared my pictures
to when I was pregnant with Mace. At 16 weeks pregnant now, I am as big as I was when I was 20 weeks with Mason. That has to do with the fact that I started out at 30lbs heavier with this pregnancy than I was with Mason, but as long as I don't gain weight or as little as possible I hope to end at a smaller weight than I was when I had Mason.