Ay mamsh, from what I know Bio-oil is generally considered safe even in the first trimester kaya don't worry too much, a few of us moms have used it from early on and walang issues! But honestly, since you're already worried, best talaga to check with your OB during your next visit lang para makasiguro at matulog ka ng mahimbing, kasi peace of mind talaga ang kailangan natin ngayon hehe. Proud ka na nag-start ng skincare routine para sa stretch marks though, that's very responsible mommy!
S