Hello everyone! Who takes folic acid? I bought it with a dosage of 1mg…

Hello everyone! Who takes folic acid? I bought it with a dosage of 1mg. And online it says 400 mcg is needed. Should I divide it in half and drink it? And generally, do I still need to take it? Until now, I only drank multivitamins, there was folic acid in them. Now at 26 weeks pregnant.