anybody have ta...

Has anyone taken the plan b on the day of ovulation? I took it 8 hours after intercourse. He didn't cum in me (I actually swallowed it lol) but pre cum have me scared as hell I took it to late. He told me I didn't need it cause he's positive no pre cum came, it was only a could strokes before I gave him head until he came. Just want to hear someone experience if u taken it in my situation.