Abnormal shape uterus??

vida90

I have a huge issue and just need some advice from someone who has gone through this similar situation. I'm currently 4weeks and 2days. I had an ultrasound today and there's nothing in the sac. But clearly there is a sac in the right place in my uterus. But the nurse said I have a abnormal shape sac so most likely I will miscarriage. But I'm going to pray and just let these two weeks go by. Then go for another ultrasound. I don't have any pain, other then regular mild cramps that normal for early weeks of pregnancy. I'm not bleeding or spotting. So I'm not gonna stress myself. Have anyone else had an abnormal shape uterus and go on to have a normal healthy pregnancy??
PLEASE please help