My husband and i had unprotected sex 2 days prior to my est fertility window. my ovulation day is est for 03/08. could i still have conceived?

Sounds too early: Today is 3/04 so estimated ovulation is still 4 days away: If this is correct, it is early (likely too early) to be trying to conceive. Highest chances are between 2 days before and the day of ovulation . Conception from sex 4 or more days before is possible but not common. The term "fertility window" has no real definition and I find not terribly useful; focus on ovulation and good luck.