Mamsh, yan talaga ang tanong mo, please talk to your OB muna bago uminom ng kahit anong gamot sa first trimester, okay? They know your situation best at pwede ka nyang i-guide properly. I know sakit ng ulo is super annoying lalo na ngayon, pero better safe than sorry sa pregnancy. A few of us moms I know always check with doc first before taking anything, para walang alalahanin. Kaya please reach out to your doctor agad!