How likely is this...

Sarah

Okay so, me and my husband had unprotected sex two nights ago, (and I can't even believe I risked that!) And when I logged it, it said 11% chance of pregnancy, and was ovulating in 4 days.. We only had sex that once time. We haven't done that in awhile. And I know it only takes one time. But how likely is it that I could get pregnant? My little one will be a year in 3 weeks. And I hear you can still get pregnant very easily.