Reply To: I am 17 weeks pregnant. My level is today 123 nmol/l (49 ng/ml). One month a go i was 49 nmol/l (19 ng/ml). I was taking 50 000 IU a week and going to solarium! My MD thinks I do not need to take D vitamin any more. But on the day i give blood i had 8000 IU D. Does it give false positive results? And what a mount should i take now?