Your periods were irregular due to the i pill.In early pregnancy
you should always take the scan as the most accurate.Susten
has been given to you to help the pregnancy and doesnt have any side effects like vomiting
.That is part of the normal pregnancy symptoms.Your will prescribe medicines for that.You should go with the gestational age
in the first scan.You may have to take the susten for 2-3 months and it can be earlier if the scans are good.