Implantation bleeding ??? Or

I believe I'm spotting. When I wipe I see light pink blood it been going on for 2days now. I'm not filling up a pad and in the pad its a small line of dark blood. I been sleeping all day and cramping. Idk if its implantation or PMS . my period not suppose to be coming on for like 10 days from now an I started ovulation like 7 days ago and I had unprotected sex during them days. Could I be pregnant or should I just wait it out . I think I been thru something like this before and I turned out not pregnant I don't wanna get my hopes up high but I really want a baby.