If you have sex often enough, and if you are not urgently trying to get pregnant, working on strategizing the timing of sex may not be necessary. But knowing the best time to have sex can help you if you want to get pregnant soon. You can definitely get pregnant even if you only have sex once, but it will still depend on which phase of the monthly cycle youre currently in. If you are trying for a baby, having sex once can get you pregnant if you happen to track your ovulation period. How often you should have sex to get pregnant if youre lucky, you may get pregnant in the very first attempt. If you spend any time at all looking for fertility advice on the internet, youve probably heard that youre supposed to have sex every other day before ovulation occurs to increase your chances of getting pregnant. For many couples, that seems reasonable enough, and they dont give it another thought. If you would like to get pregnant faster, you may be interested to know when to have sex to get pregnant, how frequently to have sexual intercourse, and whether there are certain factors that may decrease or increase your chances of getting pregnant. How often should you have sex? Couples who tried to get pregnant were previously told to have sex once every other day during their fertile days. But studies have shown you can improve your chances if you have sex once a day every day (as long as his sperm are ok) during the fertile 4-5 days prior to, and the day of, ovulation. When youre ready to have a child, you may wonder how sex for pregnancy differs from sex for fun. How often should you have sex to get pregnant? By mira fertility jul 30, 2019. If you are researching on the internet about tips of sex and pregnancy, you might encounter a lot of mixed information. Some may tell you to have sex every day, while others suggest to save sperms for a few days between sexes to increase sperm count. How often should you have sex to get pregnant? Answer your best bet is to have sex at least two to three times every week. Trying to get pregnant can sometimes turn sex into a chore, a scheduled duty on the calendar. When you are trying to conceive, you usually want to have sex on your most fertile days to ensure the best chance of getting pregnant.