Help!!! 👉🏼👌🏼👶🏼

So my boyfriend and I had the condom break a few weeks ago... I was a day or two off of my peak “let’s get prego day” (which I didn’t realize till a few days after). I’m on birth control but still I’m worried I’m pregnant... (my period should start Sunday) what are symptoms for implantation and does anyone have any helpful advice or anything to say??? I know if I don’t want a kid I shouldn’t have sex but even though I’m 19 ( almost 20) my super religious parents, who hate my boyfriend, will probably kick me out of the house and disown me if I am pregnant so any help or whatever would be nice!!!