hi your find that your fertile days would only be 2 not 5 so if you had unprotected sex over the 3 days you say and you have to allow you then have to add in to your equation 3 days for male sperm to reach your womb your find its to late as your egg would only last 2 days max. so for me your not pregnant if you are trying to get pregnant? try having unprotected sex 5 days before your ovulation days reason male sperm can live for 7 to 10 days in the womb. do hope this helps you. good luck
had my period last month 3-7 this month 2-6 my fertile days were 15-20 i had unprotected sex 20-23 could i be pregnant