Hi tia! Yes, eyebrow threading is generally safe during pregnancy, a lot of my pregnant friends actually did it throughout, kaya no worries doon. Just make sure the salon is clean and the person doing it knows you're pregnant so they're extra careful with the pulling sensation, which can feel a bit stronger when you're expecting. Some mommies prefer to wait until after kasi the skin is more sensitive, pero kung kaya mo at comfortable ka, go lang!