If you experience bloating during pregnancy preparation, the first thing to look at is your menstrual status. This is because only a small percentage of women experience lower abdominal cramping or a small amount of vaginal redness during fertilization of the egg, while most women do not experience any discomfort. If there is poor gastrointestinal function and intestinal flatulence, bloating is also likely to occur. Therefore, you cannot rely on bloating symptoms to determine if a fertilized egg is in the womb. If, after intercourse, your period does not come as expected, or if your period is delayed for a week, it is recommended that a urine test be performed to determine if it is related to pregnancy. In addition, you can also determine whether you are pregnant by taking a blood test for hcg about 10 days after intercourse.