Hay, anak, for anything herbal or supplement during pregnancy, kailangan talaga muna i-check ng doctor mo, kahit natural-sounding pa yan! Iba-iba kasi ang effect sa bawat mama at sa baby, so better safe than sorry talaga. I'd suggest i-ask mo agad sa OB mo kung okay lang or if there's a safer alternative. That's the best way to go, promise!