Plan B


So my boyfriend and I just recently started having sex. During my ovulation week we did it but the condom broke. He had only cum a little in the condom but i was still freaking out. I peed right after and took plan B 40 min after it broke. That happened last Wednesday and for the rest of the week I've been dizzy and had cramps. My period is supposed to be here in about 10ish days but I'm kind of freaking out. Has anybody had side effects last that long from the Plan B pill or could it be pregnancy?