If anyone can help PLEASE!!!

I have been on depo for a year straight. I decided that I would give my body a break and decided to get off. I went in for my last shot back in February and decided not to go back in April to get my next dosage. When I got off I did not get a period right away. 6 months went by and I finally got my period this October. I am in a relationship of 4 years and me and my bf does not use condoms. It's now November and I have yet to get my period. So I'm a little confused as to knowing if this is just my body still trying to get back to normal and my periods my be irregular for a while it if I'm pregnant. Has anyone else experienced this issue from using depo?
Also I did take a pregnancy test and it came out negative. Not sure if I took it too soon.