Yes. It is safe.
Kindly take the tablets regularly. Do review with your doctor after a week with
sugar levels. 350 is quite high so need to bring it down soon
Ensure that you get a renal function test, urine routine with urine Protein dipstick, ecg and echo done before IVF.
You might require insulin if sugars don't get controlled with tablets. I am telling this so that you can mentally prepare yourself for the same, if required
Your diet and exercise is crucial in sugar control and general well being. Kindly enroll onto a diet program with calorie restricted diet.
Start any form of daily exercise. Start slow and exercise for 5 days a week if feasible. Even walking or yoga will help
Take care and all the best