If a woman succeeds in conceiving after having sex during ovulation, the fertilized egg will come to bed in the endometrium in about a week. After successful implantation, the woman’s body will show a series of symptoms, such as easy fatigue, extravagant sleep, lower abdominal cramping or pain in both sides of the abdomen. Of course, there may be some women who do not feel any symptoms when the embryo first starts to implant. After the fertilized egg is successfully implanted in the endometrium, the body will secrete a series of hormones, such as estrogen and progesterone, which will rise sharply, and the rise of progesterone will cause women to feel tired frequently, which is also a typical symptom after the embryo is implanted. The fertilized egg needs to be transported from the fallopian tube to the uterine cavity for implantation, so during this process, women may experience pain in the abdomen or on both sides of the abdomen. However, this pain does not last long, only about 2-3 days. After having intercourse during ovulation, if a woman has the above mentioned symptoms, she is likely to be pregnant, and at this time she can go to the hospital to have a blood test for HCG to confirm whether she is pregnant.