trying for third baby after 2 depo shots

Hi, me and my husban are trying for another baby... after having a depo shot in aug 2010 and another in nov 2010 when it came due in jan 2011 i decided not to get it. jan 23 i started bleeding and by my suprise i had a period for 5 days. feb came and i started my period the 24 and had it 5 days. now march has came and almost gone and i have yet to have a period. i have taken 3 pregnancy test and they all came back negitive does anyone have any ides or know what might speed this long and fustrating time of trying to get pregnant after only two depo shots?

[Tristaolson]

ur body my just be getting us to getting shots and its trying to regulate itself. not sure how to speed up trying to get pregnant, i got pregnant all three times when i was on birthcontrol patch pill and shot