Oo naman, ginger tea is generally okay sa first trimester, marami sa amin ginagamit niya for nausea, honestly! But kasi every pregnancy is different, mas safe if you'll run it by your OB first, especially kung ilan ang inom mo daily, para sigurado lang sa dosage at sa baby. One of my mum friends swore by ginger tea when she was so sick sa early pregnancy, pero she checked with her doctor pa rin bago mag-regular intake, kaya that's what I'd suggest din sa iyo!