Pregnant a few days will have a reaction

In general, a series of early pregnancy symptoms may appear at about 6 weeks after menstruation stops, that is, 42 days. In medicine, pregnancy time needs to be calculated from the first day of the last menstrual period, not from the time of ovulation, not from the time of discovery of pregnancy. Generally, 6-7 days after ovulation, the fertilized egg will be implanted, and then the trophoblast secretes chorionic gonadotropin. Chorionic gonadotropin levels rise relatively fast, generally to about 6 weeks of pregnancy, it reached a relatively high level, which may stimulate the body to produce early pregnancy symptoms. In 8-10 weeks, the level of chorionic gonadotropin peak, early pregnancy symptoms will be more obvious. To 12 weeks of pregnancy, the level of chorionic gonadotropin decreases, early pregnancy symptoms will gradually disappear.