Folic acid

Hi fellow mums/dads-to be! I just found out I’m expecting and went to the GP and got a referral to an OBGYN. I wasn’t eating folic acid before so the GP just prescribed it to me but he gave me 5mg dosage after googling lol. Is this ok? I did my research online and it sounds like usually mums only take 400mcg and 5mg is usually more for high risk pregnancies which at this stage i’m not... I’m due to meet my OBGYN only next week so wondering if I should take the 5mg in the meantime and whether there would be any negative side effects from consuming higher dosage of folic acid than required? Appreciate any advice!