“Negative pregnancy test but no period?”

Hello, my last period was February 22 and we did unprotected sex. My partner didn't insert, all the semen came out into my pubic area after that I wiped it out and immediately go to the bathroom to wash it out. After that, I didn't feel anything for a few days and I eat a lot as usual then. A week after that I feel the symptoms of early pregnancy like nausea but not vomit, I feel bloated, something happening to my stomach, belching, and headache I feel this for 2 weeks. Then 3 weeks later I only feel bloated, belching, farting, tender breast and nipples. I started to notice a white discharge it's like a clear but when I look closely it's white and watery until week 5. Yes, I did a lot of pregnancy tests starting from week 2 until now they all show negative. Then this Monday week 5 I have no menses. The white discharge turns into a light pinkish/brownish I don't know if its discharge or spotted all I have for now I have like a light pink brownish discharge and bloated, stomach something belching and burping and rarely headache. I don't feel nausea, tenderness in my breast. I also minimize my food and drink a lot of ginger to ease my stomach something. I just want to ask if I'm pregnant because I'm so scared I don't know when will my period start because it is almost likely to be 1 month that I have no period. I'm only 17 years old.