I don't know....

Ok so 2 months ago I started getting red stains on my underwear so told my mom. and so it kept happening very months for like 7 days and my mom thinks I might have my period. but I'm not sure cuz it's just stains on my underwear not liquid blood so tomorrow I have a doc appointment so I'll ask my doc if I do have my period.... but if I don't then I have to leave this app then cuz I got this app cuz I thought I have my period. so guys I'm a bit worried about this situation.😬 What do u guys think do I have my period or no?