Seven days after taking the short-acting contraceptive pill, you can have intercourse, which is already effective. The first time to take short-acting contraceptives usually in the first day of menstruation to start eating, take the pill within seven days it is recommended that patients do not have intercourse, because this time the contraceptive is not yet fully effective, if you want to have intercourse, it is recommended to take a condom method of contraception, to prevent the chances of unwanted pregnancies occur. After seven days of oral contraceptive pill, the contraceptive effect is better, you can have intercourse without contraceptive measures. The second short-acting contraceptive pill can be taken on the fifth day of menstruation, and can be taken twenty-one days a month. It should be noted that long-term use of short-acting contraceptives will increase the possibility of blood clots, but also damage to the liver and kidney function, with nephritis or hepatitis women are prohibited. If you have discomfort after taking short-acting contraceptive pills, you should go to the hospital in time to see a doctor and give targeted treatment after clarifying the cause.