Medication question

Amanda
Has anyone taken or been taking Metropolol during their pregnancy?! I take it for an increased heart rate. I've been taking it for about 2 years and I'm now 6 weeks pregnant, my doctor advised me today(1st visit)to stop taking it and is referring me to a cardiologist. Has anyone had any complications during pregnancy or when baby was delivered if you were taking this medication?!! Now I'm worried.