What Days Are The Best For Ovulation?

hi am brinda from mauritius....i got my last menstruation on 6th march, the one before was 2nd feb and the one before that was 1st jan 2011....i used an ovulation strip yesterday and the result was negative...i had sex yesterday and today the result is positive...i want to get pregnant...pls suggest fertile days and ovulation days. how many days must i have sex to get preg.



thanks in advance