I missed my period today will be the 7th day that I missed it. I've been on the shot since I was 15 and I am now 21 I will be 22 in 2 weeks. And I usually didn't have a period when I was on the depot shot,but I've beeen off the depot shot for a year now, me and my boyfriend have been trying to have a baby so now I'm wondering if I could be pregnant? I took a at home pregnancy test it came back negative I have another 1 but I don't know when to take it. Could I be pregnant?