I'm seriously thinking about ending it just to make the anxiety stop

I'm going insane. I'm on Nexplanon and using condoms, but I think I'm pregnant. 5 days ago, I had pink discharge that lasted for two days. I had sex 14 days before, with a condom, and I think it got me pregnant. I haven't had any noticeable symptoms, but it could be too early. I also took a test yesterday and it was negative, but again, it could be too early. I can't stop thinking about it. I can't tell my mom because she would kill me, so I can't go to a doctor. I can't do this anymore. I really can't. I don't want to be pregnant.