Please help lol tmi

Mckayla

So I am on birth control and my period this month is very weird. It is bright red and watery/stringy. I wore a tampon to swim and I bled through very quickly and there wasnt much blood on the tampon is was like the tampon didn't soak up the blood. A few clots the first day and now on day two and still the same way. Any one know what is going on??!! Please help!!