Helppp

me

Me and my boyfriend had sex saturday early morning and I went to the bathroom and peed and when I got up I seen semen in the toilet so later that Saturday I took a plan b my fertile window doesn’t start into 4 days do you think the plan b will work or ? what are my chances of pregnancy? My period ended earlier that day on Friday. And no I’m not trying to get pregnant. Please smb help I don’t know what to think or do