Twenty-two weeks of conception equals five months and four days of conception, or about five and a half months. The number of days to conception is calculated from the first day of the last menstrual period if you have regular periods, 7 days for a week, 4 weeks for a gestation month, and 40 weeks for the whole pregnancy. Therefore, it is more accurate to calculate the number of days to conception according to the week of conception, but there may be a little error if you calculate it according to the month. At 22 weeks of pregnancy, this stage already belongs to the mid-pregnancy, and the more important checkups at this stage are the 4D ultrasound and the pregnancy glucose tolerance test. During pregnancy, pay attention to regular pregnancy tests, eat small meals, do not overeat. After mid-pregnancy, you need to eat less sweet food, such as snacks, milk tea, and high-sugar things, because after mid-pregnancy, blood sugar is easy to fluctuate, and weight gain is faster, so too sweet food or greasy food should be controlled appropriately.