Positive test?

I had my abortion 1 month and three days ago. My symptoms stopped about a week after. Yes did.have sex few times and.we were both what I thought safe about it. I started having symptoms what im thinking pms tired, moody, very hungry, bloating, mild cramps etc the norm. What made me test was I have not yet.started and I also spotted light brown for 2 days then it stopped. Idk if my period is out of.whack or I am pregnant. Has anyone still had a positive test after a month??? Could it just be.horomones ???