Fast weight gain- 25 weeks

M ❤️ • 30 years old. TTC 2 years, froze eggs 11/15, FET 2/16, 1/16, 3/16... Due 11/16 had baby boy 11/16 ... some how naturally pregnant and due 11/17

Friday I was 131 and today (Wed) I'm 135. How can I gain 4 lbs in less than a week? This is insane. Im getting so big!