I had a c section for my first birth and when they discharged me the consultant asked me about contraception to which I said I'd arrange with my gp. She told me to wait around 18 months until I had my next child. Is this right? I have a high bmi (would this affect anything?). Would I really have to wait that long before even trying to conceive? What risks would I be at if I started trying or even caught accidentally before then?