6 weeks - gaining weight!

Cecily

I’m currently 6 weeks 4 days and I’ve gained 4 lbs since before I found out I was pregnant. This is my third pregnancy and with the last two I didn’t gain much weight until later on and only gained about 20-25lbs total each time. I’ve consistently been the same weight for several years now both before pregnancy and soon after I give birth. What’s going on!?