Mama, congratulations on your pregnancy! Honestly, a lot of us moms go with whatever our OB prescribes, branded or generic, pareho lang talaga ang active ingredients kaya wala masyadong difference, basta sure lang na from a trusted pharmacy. Pero ang best talaga is i-confirm mo sa doctor mo kung anong specific vitamins ang kailangan mo sa 4 months, kasi bawat pregnancy different sometimes based sa blood work or kung may deficiencies ka, mas safe na rin na sila ang mag-decide for you since they know your case. One of my mum friends naman ay nag-stick sa generic at perfectly healthy ang baby niya, so don't worry too much, just make sure consistent ka lang sa pag-inom at sigurado sa source.