Pregnancy Supplements

Hi Mummies, I’m a sub patient at NUH currently week 8. Doctor only told me to eat Folic acid. Is that normal? I am in a group chat with same EDD mummies and they are eating blackmores pregnancy vitamins, iron, calcium pills too? Currently I’m taking fish oil, folic acid and iron. Only folic acid was requested by doc. I’ve been taking fish oil even before I got pregnant. My next visit is in Nov, and I just wanna know if I should buy the pregnancy multivitamins first or should I wait till I’m 12 wks to ask the doc at my next visit? #pleasehelp