Help.

Okay so this is going to be a long and confusing story but I need help. So my boyfriend and I had an accident where the condom broke on February 26 and the two weeks later I got the faintest of positives. I had missed my period but the six days after my expected period I had experienced cramps and had red vaginal bleeding so I was nervous that I was having a miscarriage. But my periods are usually super heavy and last about 7 days and this bleeding (while heavier than I had hoped for, wasn’t as heavy) only lasted 2 days and that has never happened to me. Then after the bleeding had subsided I had decided to take another test and then I still got a faint positive but like so light that it’s a little hard to see but still there and it got just a little bit darker over the course of another month and then this month I had missed my period by a daw days again but then again the same thing arose and I was in a lot of pain and the bleeding was quite heavy but extremely short and also another thing I’ve never experienced in my life was it weaning on and off. Itll start out as pink discharge and then fade out as almost brown. I don’t believe I am producing a lot of hCG and I have always had hormone imbalances so I wouldn’t be surprised. My mother told me that she couldn’t get a positive pregnancy test until 3 months pregnant with one of her children so maybe it’s a genetic thing? I went to the doctors and they told me the test came back negative for a urine test but that she wouldn’t tell me a definite yes or no because she felt otherwise. I’m just so tired of being so confused. Are there other hormones that you can test for to determine a pregnancy or literally anything else? Thank you