Women who are preparing for pregnancy can be judged by these phenomena: 1. More than 2 weeks after having intercourse on the day of ovulation, the menstruation that should have come on time does not come on time, which is the most characteristic performance to determine whether you are pregnant or not, if there is still no menstruation more than 3 weeks after intercourse, the possibility of pregnancy is very high. 2, The possibility of pregnancy is also indicated by the sudden increase in the number of urination and the absence of pain during urination about 3 weeks after intercourse. 4. The possibility of pregnancy should also be considered when a woman who usually has a good appetite and good digestive function suddenly shows nausea, vomiting and changes in eating habits.