I've been to my booking appointment which is done before you see midwife (called early bird session) and the lady I saw told me I was taken the wrong dose of folic acid as my bmi is too high (31), so I've had to request a prescription for 500mcg (I think that's right)....anyone else known this happen? I was a lot bigger (3 stone heavier) with my last baby and didn't need more. Also she said I need to take it till baby born, I've always thought this to be until 12 weeks. Obviously I aren't bothered about taking it, was just a tad embarrassed as I didn't know x