Birth control

I want a safe and effective birth control, but I want a more natural birth control. I tried the pill and was on my period a whole month, what’s the point of birth control if your on your period the whole time and can’t even have sex to get pregnant?? I stopped taking the pills. I recently had a baby so Its easier for me to get pregnant and I just want the most natural birth control and still have a normal period. Any suggestions? I really didn’t want the iud and create scare tissue bc then there’s a possibility I won’t be able to have kids again. I’ve heard bad things about every birth control and I don’t know what to do