Does or has anyone used it? My 16 yo dd has a 2 month old and had it implanted today. I was just wondering what people's opinions are of it. The dr. said it takes about a month to start working, but she read online it only takes a week. She's going to use condoms for a month just to be on the safe side. She's aware of the possible bleeding or not having a period. Are there any other side effects we don't about?