I've read the previous posts on this but now starting to really scare myself with dreaded google searches. I had one round of IVF then got pregnant naturally. BMI 27.9. Age 41. My clinic prescribed 5mg of folic acid - which I took for the first 3 months, then stopped. Also been taking prenatal multi-vitamins throughout. Reading about it online now at 25 weeks and that is huge amount of folic acid and there are links to autism and slower brain development. I am freaking out ... why on earth was I prescribed so much? No history of miscarriage, but it is my first pregnancy. It's done now but any reassurance whether this can be negative would really help ...