Postivtie, bleeding, negative

Hello, I was wondering if this has happened to anyone and what was your outcome.

So Friday I took a pregnancy test and got a postivtie. Then Saturday I started bleeding it was red but light and I had to wear a pad so it wouldn't get on my clothes. It wasn't a lot blood to fill the whole pad. I went to another pregnancy test on Sunday and got a negative. So I was worried and went to a clinic on Sunday and they tested me negative as well they didnt really understand either and couldn't tell me anything either. I am still bleeding but there is no cramping at all. I don't know what to do or if I am or not.