The time it takes to get pregnant can vary among women; those under age 35, in good health and having unprotected sex generally get pregnant within six months to one year. A woman can increase her chance of pregnancy by having sex at the optimal time, states WebMD.
It is recommended that a woman who wants to get pregnant has sex three times per week as sperm can live for three to five days. Women wanting to get pregnant are advised to have sex every other day, rather than everyday, because it allows sperm the chance to increase. The best time to get pregnant is during the 14 days before ovulation and the day it begins, explains WebMD.