Hey guys I need help

So I’m getting kinda worried now I haven’t got my period yet and I am sexually active we use protection I’ve as sex twice since my last period and now worried that something is wrong my boyfriend didn’t even cum the first time and when he does he pulls out even with a condom but I’m worried because I haven’t not it and I’m about maybe 13 days late 😰 my period used to skip months and my period did change a while ago