hello. my name is heather. i am 17 years old. i think i am pregnant. i took a home pregnancy test yesterday and it was negative, but i have heard that the depo shot can cause a home test to be inaccurate. i started the shot in may of this year and at the end of july i was supposed to get it again but the health department told me i had to wait another week untill august 2nd. i had started bleeding a little bit before i was able to get my shot so i am thinking i might have concieved during that week. i do not have the money or time to go to a doctor s office and get a blood test or an ultrasound but i did talk to my step mother who has given birth to 7 children. according to her, i am pregnant. i told her all my symptoms (nausea, urinating more often, lower abdominal and back ache and cramping, the bloated, heavy feeling, my breasts are starting to feel heavier, cravings, libido levels have risen, etc..) and when she felt my stomach she said it feels like i am pregnant and said she feels something that feels exactly like an umbillical cord through my belly button. i truly think i am but would like an experts opinion. can you help me?