23 year old TTC

Jennifer • Finally expecting after being diagnosed with unexplained infertility. Pregnant with #1,happily taken by my amazing boyfriend! ♥️08-06-22🤰
My fiancé and I are trying to have a baby , I read that you should have sex 3 days before and the day of ovulation , we ttc on the 2nd and yesterday , and the 2nd was the day I started ovulating according to an ovulation test, I'm supposed to get my period on the 16th , even though we didn't try 3 days before ovulation , is there a possibility that I could be pregnant , or show symptoms a couple days before or if my period doesn't come?