Depo shot

Hi my name is Tequila, and this my first time using this site. I took my very first depo shot April 18 two days after having my second daughter, I was bleeding ridiculously for the month of May and June, seems like I was bleeding every other week and would keep bleeding for a WHILE. Well I missed my second shot which I was supposed to receive on the 10th of this month, I haven't seen my period, could I b pregnant again? Please help!!! I don't know anything about depo, this is my first time EVER taking it.