Oo, normal yan eh! A lot of us mums experienced mouth ulcers during pregnancy, hormones lang talaga ang culprit, super common sa first trimester. But since you're at 6 weeks pa lang, best talaga na i-mention mo sa OB mo next checkup para sure lang, at para ma-prescribe niya kung anong safe na gamot or mouthwash pwede mo gamitin habang pregnant kasi maraming products na hindi okay during pregnancy.