DH and I just decided today that I'm going to go back on the shot. I was on it for 3 years pre-baby with good success
I never had any weight gain which is a concern for some people and it is a progestin method which is supposedly ok for breastfeeding. I did discover AFTER I came off the shot that I had a sex drive (never had sex before starting it) that I didn't know about...not a big deal, just spiced things up. My main reason for the shot is that I know it's effective, I've been on it before, I don't have to remember anything, and DH is going to get a vasectomy eventually. We have really fantastic religiously centered health insurance that doesn't cover sterilization or birth control so we have to save the $1000 to pay for his procedure. I'll only be on BC until then.