I am 6 weeks pregnant and had a ultrasound last week when was 5 they see the baby yet my levels have gone from 64 to 6200 is it normal not in ultrasound?

It is possible to have a positive pregnancy test and an ultrasound that does not show a baby at 5 weeks. This is because the embryo is still very small at this stage and may not be visible on ultrasound. However, it is not normal for hCG levels to rise to 6200 without a visible embryo on ultrasound at 6 weeks. This could be a sign of a molar pregnancy, which is a rare condition that occurs when the placenta grows abnormally. A molar pregnancy can lead to complications, so it is important to see your doctor as soon as possible for further testing and evaluation.