Pregnancy/bc question

Jessica
Ok... so long story short my husband and i have been married a year this month and i knew that we would like to ttc soon so i was a supposed to get my depo shot the end of june and i didnt so I've been off of it for 3 months now without having a period so far... does anyone know how long until i will start ovulating again or is it possible to get pregnant without having a period? My boobs have been very sore and i dont know why? Please anyone have any ideas on this??