RE: Prenatal vitamins - nausea and vomiting

I am on the 7-8 week of pregnancy. I have nausea most of the day. I’ve been taken a prenatal vitamins ( including folic acid) for 3 weeks now. The peals make my nausea worse and sometimes vomiting ( 20-60 minutes after taking them). Does that mean I loose them? What can I do to avoid it? Also my HCG level is about 250 IU/ml and on the table attached to the test-results it is mentioned that it should be 15-200 at the 6-8 week. Is that too high and should be of concern? Thank you for your attention.