If I had sex days 5, 4, 3 and the day before ovulation can I still get pregnant? What's the percentage?

Yes!!! Best way to get pregnant is to have unprotected sex for several days before, during ; after ovulation as sperm ; egg can live for several days inside your body. Thus timing can allow for overlap to improve chances of becoming pregnant. Odds are 1 in 5 to 1 in 4 of getting pregnant during each cycle. Check out http://www.Babymed.Com/getting-pregnant/what-are-the-odds-conceiving-conception.