<s>[INST] hi, i am a 23 year old female. i have a three year old daugter. my husband and myself are planning to have another baby but we are unsure of when to start. i had a depo shot on the 19th of june 2011. my next shot was due the 19th sep tember 2011 but i didnot go. we had unprotected sex thrise since then can i be pregnant even if my last period was the 12 september 2011 and i still didnot get my periods after that? [/INST] HIThank for asking to HCMI really appreciate your concern and looking to history given here, I would say that if you are on hormone therapy then every thing would be very uncertain and no need to talk about this, if you are doubtful then better to get done the ultrasonography test this would clear the doubt, have a nice day, </s>