PLAN B HELP

Tania

Okay so I took plan b June 18, I took a pregnancy test last week, negative. But then had unprotected sex Tuesday (July9) and he cummed in me but had a plan b next to me and took it right after he told me he did. I’m scared in when I’m gonna get my period since that’s 2 plan b’s in a month, and also I heard that plan b doesn’t work If you ovulate the day you have sex or something like that but I’m so confused on that so someone please help me I’m really scared