Mama, first thing, please check with your OB agad about any medicine, including vitamins or supplements, kaya mo lang ma-confirm kung safe talaga for you and baby, okay?
If it's really urgent or you're worried, don't wait, call your doctor or go to the clinic. Better safe than sorry, lalo na first pregnancy mo!
A few of us moms always ask our OB directly about timing and dosage para sure, kasi bawat pregnancy ay different. Kaya go ahead and message or call your doctor, they'll give you the best answer for you specifically. You got this, mama!