my boyfriend and i are trying to get pregnant. i was supposed to go in for my shot on feb. 27th 2013. But i didn't as we want a child, we've been trying to conceive since i've been off of it, for about 3 months now, i have taken depo on and off since 9th grade, i am now a year out of high school, i got my last period back in november of 2012, and started the shot again right after that, it was only 3 months, how long will it be till we can get pregnant?