I am 20 years old and have two kids. After my second was born I started the depo shot. After the first round I didnt go back to get it done again. The first couple of months after it wore off was fine. But this month I have had three periods, and are on the forth now. I got the first one, which was normal. Then a couple of days after I stopped bleeding, I got it again, And so on. Its not heavy bleeding, just like a normal period. But every couple of days after I stop, I start again! Any idea on why this is going on???