Signs of pregnancy after withdrawal bleeding

When women take emergency contraceptive pills, they may experience withdrawal bleeding. Generally speaking, this condition will disappear. However, because emergency contraceptive pills are not 100% effective in preventing pregnancy, women can still get pregnant after withdrawal bleeding, but at this time, the probability of an ectopic pregnancy is higher. However, the signs of pregnancy are not much different from those of normal women.

Withdrawal bleeding refers to a condition. Withdrawal bleeding usually occurs within 1 week after stopping the medication, and vaginal bleeding occurs, which is medically called withdrawal bleeding, but it may be longer in some patients. The longer the amenorrhea lasts, the more withdrawal bleeding there is.

(1) If menstruation occurs after progesterone injection (with withdrawal bleeding), it means: ① The uterus is normal and the endometrium has a normal response. ② The ovaries secrete a certain amount of estrogen, which causes the endometrium to proliferate. ③ The functions of the central nervous system and hypothalamus-pituitary-ovary have been basically established, but ovulation is not yet possible, such as some patients with amenorrhea due to immature hypothalamus-pituitary-ovarian axis and polycystic ovary syndrome.

(2) If menstruation does not occur after progesterone injection (except for physiological pregnancy, etc.), it means: ① The uterus may be abnormal. ② Insufficient ovarian estrogen secretion causes the endometrium to fail to proliferate and thus cannot shed and bleed. ③ Pseudo-amenorrhea caused by congenital atresia of cervix and vagina. Further examination is needed to determine the exact cause.

(3) Withdrawal bleeding is also called "substitute menstruation" and is the same as menstruation. It is called substitute menstruation because the bleeding days are controlled by medication instead of being calculated according to normal schedule. The next menstruation can be calculated as a menstruation based on this replacement menstruation, and the next menstruation will be based on this time.

Bleeding after taking emergency contraceptive pills is a common situation, which is clinically called withdrawal bleeding. In fact, this kind of bleeding is generally not considered as menstruation. Several situations of bleeding after taking emergency contraceptive pills: Women of childbearing age take emergency contraceptive pills at different times of the menstrual cycle, and the effects on menstruation will also be different. If taken in the first half of the menstrual cycle, it may interfere with women's menstruation and cause vaginal bleeding; if taken in the second half of the menstrual cycle, it will interfere less with women's menstruation. If the amount of bleeding is similar to normal menstrual flow, it can be regarded as a menstrual period.