Pregnant.. with twins!

My husband and I have experienced a few losses throughout infertility. Years later, we tried again naturally and were pregnant on the first try!

I got an early scan since I've had an ectopic.. and my ultrasound showed TWINS measuring 5 weeks 1 day!! I'm terrified, happy and nervous.

Doctor says they'll be fraternal due to the shape of my uterus?? Also I'm guessing because they're so far apart, it is unlikely that one egg split.

I know everyone is different, but I havent seen many scans where the sacs are so spread apart. Is this normal? We have an appointment to check for heartbeats in two weeks. This will be the longest two weeks of my life!