Might be pregnant

I just have to put this somewhere i could go crazy with how nervous i am!! so on october 21st i had unprotected sex with my (at the time) fwb i got my cycle shortly after and it was normal, but after it ended i just kept feeling funny. i already have two kids (twins) and i was very very nauseous in early pregnancy with them. i’m not constantly nauseous but definitely showing other signs. i had light pink bleeding yesterday that wasn’t consistent and i believe it was implantation bleeding. i’m not due for my next period until monday so i’m waiting to test but here’s where it gets difficult, the fwb i had is no longer in the picture and i have an actual bf now who doesn’t know about the possibility of me being pregnant. do i wait until after i test to bring it up? if it’s positive should i try finding a way to reach out to the fwb? i know for sure there’s only one guy who could be the dad so that’s no issue but i also still live at home and my mom has mentioned that if i end up pregnant again, i’d more than likely be kicked out. i’m an adult and i understand taking responsibility im just nervous. am i crazy to be worrying so much without having a positive test??