I have been off my depo shot since December... I suppose to have gotten my 2nd dosage in January.. but I just stop taken it because I didn't like the way it was making me feel after being on it for a year off and on... well my boyfriend and I had unprotected sex this past weekend.. could there be a possibility I could be pregnant... I still haven't gotten my period yet...

It certainly is possible, but most women will find that it takes longer to become pregnant after they stop injections... for some it will take many months. It is common to not have a period for awhile as your system adjusts to the change in hormones. Fertility often takes awhile to return, but it will be very individual.