Birth control options

I wanted to go back on the pill I was on before I got pregnant but that isnt an option since Im breast feeding. Trying to choose between an IUD and the progesterone only pill.

Other pills make me nervous because I dont know if I will gain weight and gaining weight is so not an option because Im military and need to drop about 30lbs minimum now. The pill I was on before made me actually lose weight. I can also stop it if I need to whenever I want which is convenient if it is something that messes with my hormones too much. I also suck at taking the pill and will probaby be worse now that Im also a mom and have more to worry about.

I dont want an IUD because we plan on trying for baby #2 in just over a year and I dont want to get it in then get it right back out that quick. I also dont want to risk heavy bleeding/heavy periods because my periods use to be total hell and that was why I got on bc originally. Also dont feel like having anything else gp through my cervix this soon after child birth😂

Tough decisions.