Determining pregnancy by ultrasound requires the implementation of certain rules in order for the results to be reliable. Gas in the intestine interferes with any study, so it is worth eliminating legumes and other gas-producing foods from the diet. At least two days before the procedure.
When a transabdominal examination is prescribed, it is necessary to fill the bladder. It is advisable to drink enough water three hours before the procedure, if the woman is able to endure that much. Because of this, discomfort is possible during the study. It is definitely impossible to determine the gestational age by ultrasound on an empty bladder.
If you are scheduled for a transvaginal procedure, defecate and abstain from sex a couple of days before the test.