Yes...conception odds are high provided there are no known issues (feritlity wise).

The three days prior to, day of and day after ovulation is the woman's fertile window.

Mehkmehk and lilbit2010-

first you have to determine when your ovulation happened seeing as your fertile window centers around that day.  Like I said before- if you have unprotected sex in your fertile window then the chances of you getting pregnant is the same as those couple who are trying for a child (provided you or your partner don't have reprductive issues):  25% chance a cycle... there is no sure fire answer to say you are or aren't pregnant until you have missed the day of your expected bleeds to begin.