I want reassurance

Michaela

Hello

So I have had my implant for about a year and 4 days ago my boyfriend and I had sex and the condom broke. And I haven’t had my period yet, but I’ve taken many pregnancy test and they all came back negative, but he keeps asking me if I got my period yet and I haven’t and it’s making me nervous. I have had some stress going on in my life so I am not sure if it’s causing my period to come late. Help