hi ya, i have a few concerns about my depo injection.i had a depo injection the wk of 20th oct 06. i was due again in jan07. i got told that i could have that injection but i had to have the pill after this injection cos i had been on depo before and it was time i stopped it.so i got my prescription for the pill for when i finished depo. but somehow the docs got my dates mied up cos when my depo injection was due i had a breakthrough bleed and i know they were wrong cos i met my current partner the wk i had this injection. anyway, i didnt start the pill straight away cos this period was very light and i wanted to wait for next period, anyway i am now 4 days late and havent had this period. a wk ago i had cramps and backache and still period hasnt arrived. i am getting white discharge that i've had for about a wk but still nothing. i have had unprotected se with my partner and fear i could b pregnant but all tests r neg at the mo. could this just b the depo messing with my body or could i actually b pregnant? should i start my pill anyway or wait for a period?