Hi mama! Yeast infection during pregnancy is super common kaya don't worry, pero definitely worth checking with your OB agad because they can prescribe safe options para sa baby, some antifungals are okay during pregnancy, iba hindi. In the meantime, wear breathable cotton underwear, avoid douching, and keep the area dry lang talaga, but your doctor will know best what treatment is safe for you at 19 weeks pa lang. Hoping you feel better soon!