I got my first depo shot the 18th of February I'm pretty sure. I had sex the 14th of February, 26th of February, also on the 3rd, 7th & 9th of March... I never had spotting after my first shot & I missed my period which was supposed to happen on the 5th of March. Today which is the 13th of march I started having spotting. I have been taking calcium pills & have been eating like normal... Is it possible I could be pregnant? We used a condom everytime, & i don't believe it broke. My breasts aren't tender & I haven't noticed frequent peeing. I am only 16yrs old. I need advice & I don't want to ask my parents because they will not let my boyfriend over anymore lol