Hello ? Can you tell me what vitamins you take while breastfeeding? W…

Hello ? Can you tell me what vitamins you take while breastfeeding? We've been doing it for two months now, I haven't been taking vitamins, only giving my baby D3 drops, today the pediatrician says you also take a complex, choose any, there are many, the choice is big, I don't know how to decide. Do you take vitamins at all? And which ones?