I am 10 weeks pregnant and have been spotting and bleeding since 7 weeks. I've had several ultrasound with good growth of baby, heart beat, and rising HCG. However, no one has been able to explain why I continue to spot and bleed. I am thinking I may have bacterial vaginosis since I have suffered with this quite often in the past. So, I am considering asking my OB-GYN for a script for Flagyl. So, I am wondering if it is safe to take the Flagyl in the first trimester?