If you want to have a second child at the age of 45, be sure to have a detailed examination before planning a pregnancy. First, check the reserve function of the ovaries and whether the ovarian function is declining. This is because a woman’s ovarian function gradually declines after the age of 40. If you are planning to get pregnant at the age of 45, you should have a sex hormone test, a thyroid test, a glucose tolerance test, an electrocardiogram, and a liver and kidney function test. It is recommended to have a vaginal ultrasound examination of the uterus to find out the thickness of the endometrium, whether there are fibroids in the uterus, and whether there are abnormalities in the pelvis.