is always a challenge to treat and although medicines like metformin
are considered as safe to be used in pregnancy
but it is always best to take injectable insulin
as it is much better drug to control high levels of sugar which can always take place in pregnancy due to the high stress of pregnancy.
Moreover a meticulous blood glucose control is required during pregnancy to achieve a good outcome,the use of insulin is better as METFORMIN would be unable to do so.
Please go for injection insulin.