What should I do?

Lately I've been experiencing a lot of pain which at first I thought was my period but it wasn't. I missed it but yet I still feel really bad especially when I wake up in the morning or when I have to walk home (walking home in this heat has always been an issue for me but I feel worst than I did before). I can't even breathe normally bc it hurts bad so I usually just take deep breaths trying to deal wit it. It feels like cramps but it's always throbbing. This has been going on for about a week and a half now. So I finally convinced myself to take a pregnancy test and it came out positive but could it be wrong? What do you guys think?