Uy, mama, this is really something you have to check with your OB agad, hindi ako pwedeng mag-advise on meds during pregnancy, lalo na first trimester. Andon ka na ba sa doctor mo? A few of us mums have had to manage health conditions while pregnant, and lagi talaga ang sabi nila na kailangan ng specialist guidance kasi may considerations for baby. Your OB will know what's best and safest for you and your little one. Please don't delay, call or visit your clinic soon, ha?