How long a woman can get pregnant after taking the pill depends on what kind of contraceptive pill she is taking, and the approximate time is as follows: 1. After stopping the pill: If you are taking the emergency contraceptive pill and Mafron or Eusemide, you can usually get pregnant after you have had a period and stop the pill. 2. 3-6 months after stopping the pill: If you are taking cotrimoxazole tablets or cotrimoxazole tablets, such drugs are higher due to the hormonal content. It is best to get pregnant 3-6 months after stopping the pill.3. Six months after stopping the pill: If you take long-acting contraceptive pills, or long-acting contraceptive injections, the drug content of such long-acting contraceptive pills will be higher, so you should generally get pregnant six months after stopping the pill. So how long can you get pregnant after taking the pill, you can look at which kind of contraceptive you are actually taking.