A little about both of my pregnancies.
My first pregnancy was rough. The first month if I didn't eat I would pass out. In the first month I went from 160 lbs to 165 lbs. Months 2-4 I had morning sickness so bad that I went from 165 lbs to 148 lbs. Months 5-9 I got up to 175 lbs somehow. I had acid reflux something horrible those last four months. My first was born 8 lb 9 oz, 20.5 in long, with a 14 in head circumference.
My second pregnancy was better as far as I didn't have near as much morning sickness. I didn't gain weight until I was about 3 months along. My starting weight was 150 lbs. I didn't have near as much acid reflux with the second pregnancy either. I had a lot more general pain with the second pregnancy. My weight at delivery with my second was 170 lbs. My second was born 8lb 9 oz, 20 in long, with a 13.78 in head circumference.
Some of you are sitting there comparing the measurements of the two babies. Yeah. I basically had identical twins born three years apart. They look so much like each other.