Generally, conception will be late when ovulation is late, and early pregnancy tests can be conducted under the guidance of a doctor. Ovulation is affected by the menstrual cycle, when the menstrual cycle is long ovarian ovulation time will also be delayed, and in the coitus fertilized egg implantation time will also be delayed, the time of conception will be late. Therefore, pregnant women with long menstrual cycles can undergo early pregnancy tests, such as blood HCG (human chorionic gonadotropin) test and ultrasound, under the guidance of a doctor. When pregnancy is confirmed by blood HCG test, and the gestational sac and fetal buds are seen during early pregnancy ultrasound, the week of pregnancy is also checked according to the size of the gestational sac and fetal buds, and the expected date of delivery is estimated. Early pregnancy should also pay attention to proper rest, prohibit coitus, avoid exertion, increase diet and nutrition, take folic acid on time, and carry out prenatal checkups on time. Pregnant women during pregnancy should pay attention to do a good job of prenatal checkups, actively listen to the advice of professional doctors to do a good job of comprehensive care and health care, pay attention to rest, at the same time should be relaxed, to avoid nervousness, anxiety, there is any discomfort should be timely to the hospital, by the doctor to clarify the diagnosis, and cooperate with the doctor to deal with the symptoms.