Prenatal help needed

Was told to go on gummies to help with TTC are these kinds OK? ? I haven't talked to my doctors much about TTC but everyone's saying these are good to take while ttc. Are they safe to take while treating a UTI? Also can I take them with my cranberry gummies that I take daily also ? It says to take 2 daily? Also has folic acid 800 mcg is that good was told to have at least 500 ??