My husband & i want to have our first child. we had unprotected sex 3x before my fertile date, and on on my first fertile day. what are my chances?

Too many factors: Fertility is a difficult thing to predict, many factors play a role in success. I know your history, but I don't know anything about the dad to be. If you don't succeed after a few tries you may want to talk over strategy with a reproductive endocrinologist, a specialized OB that deals with couples that have fertility problems. But let's not get ahead of ourselves. Good luck in your efforts !