You can have coitus 1 day after the implantation. For women who do not have childbearing requirements, there are many contraceptive methods to choose from, but they must be comprehensively selected according to their age, menstruation, and childbearing status. If a woman has excessive menstrual flow and prolonged menstrual period after placing the birth control device in the uterine cavity, it is considered to be the result of maladaptation of the ring, so she needs to consider choosing other methods of contraception, for example, submerged contraception is also known as subcutaneous implantation. Silicone rods are placed within 7 days of the menstrual cycle, usually on the inner side of the left upper arm, subcutaneously in a fan-shaped implantation, and can play a role in contraception within 24 hours after placement, because after placement, progesterone can be released regularly, so women can arrange for normal coitus more than 24 hours after placement, and there is no need to take contraceptive measures. A small number of people will experience irregular vaginal bleeding, spot bleeding, or even amenorrhea, and the validity period is 5 years, with a contraceptive success rate of more than 99%.