Me and my boyfriend had outercourse or grinding. We grinded or each other for about 3 minutes and he said his last ejaculation was 3 days ago. I know about pre cm and that is what im scared of. Could i get pregnant from pre cm if he ejaculated 3 days ago? We didn't have intercourse or ejaculation. Just grinding. My last period was 13 days ago and i have read that ovulation happens within 12-14 days. And now im really scared. Please help me