DD1 was 8LB 8 at 38 weeks
DS1 was 9LB 9 at 39 weeks
DS2 is due in April, I will be having a c-section this time round so will definitely be born between 38-39 weeks (unless he comes early obviously)
He will be born around 18th-22nd if all goes to plan, we live up north so May is either boiling hot or freezing cold 
My other two only fit in upto 1 month which goes up to 10 pounds, I already feel huge and feel like he will be over 10 pounds so what size should I buy?
H&M is so confusing so iv ordered 1-2 months?