Sudden hunger and weight gain!

Abby • 31 years old. Married to Eric and mom to 2 year old son Jace! Second baby boy due next month💙Mom of boys 💙💙

So up until this point I have been right on track with weight gain according to the week I’m at. This last week was a sudden increase in 3 pounds!!! I didn’t eat good last week due to my work baby shower, company over, and my sons 2nd birthday. Last week I was measuring 35 weeks last week right on track. I will be 36 weeks Thursday. Do people gain weight more in the end??? Also they increased my iron so I barely can go to the bathroom ever so I don’t think that’s helping!