Getting pregnant as soon as after your period is possible when you know which time is best to have intercourse. this is a short explanation of your period cycle and which day you should do the. Menstrual cycle. your menstrual cycle is measured from the first day of your menstrual period until the first day of the following period. most menstrual cycles last about 28 days, but they can vary in length from 21 to 35 days in adult women, according to the u.s. department of health and human services.. The first day of your menses (your period) is day #1 of your cycle. it is impossible to become pregnant on day #4 of your cycle because there's not enough time to mature an egg in 4 days..
7 tips for getting pregnant faster. conceive right after you stop birth control," goldfarb says. the only thing to keep in mind is that you could get pregnant before you get your period, so. 3. figure out when you ovulate. the key to getting pregnant quickly is figuring out when you'll ovulate, or release an egg from your ovary.. you ovulate only once each menstrual cycle. if you can tell when you'll ovulate, you and your partner can time intercourse for the best chance of getting pregnant that cycle.. If you are trying to get pregnant and have had one injection you aren't likely to get pregnant right away (although some women do). remember that the injection lasts 12 weeks. after that, your body still has to adjust to get back to normal..