Hey, I think that you should talk to your dr. to see exactly what his opinoin is. I can tell you my experience with this: my ds was born with the ombilical cord wraped arround his neck twice. He needed to get oxingen and he did not cry right away when he came out. I can tell you for sure that I don't think they can get retarded mentally from lack of oxigen. Actually the cord wrapes tight around their necks when they come out .. . My son is going to be 4 y old in May and he has no sign of retardation. At 6 week after birth he was doing better then other babys that where born without his problem . . . .
Don't worry your baby is going to be just fine, you will see. My ds apgar score was only 4 and now he looks very good for his age, and he is a smat boy he speaks two languages already( english and my maternal language). Don't worry and take care