How long does it take to get pregnant after stopping taking Mafulon? Mafulon is a common oral contraceptive whose main ingredients are estrogen and progesterone. Since using Mafulon can effectively control menstruation and prevent pregnancy, women who are preparing for pregnancy often have the question: How long will it take to get pregnant after stopping taking Mafulon? Generally speaking, women need to wait for about a month after stopping taking Mafulon.