I was put on progesterone once I found out about my BFP, and have been taking it orally twice a day for the past 2 weeks. However, it makes me extremely sluggish and tired/drowsy. If you were/are taking progesterone while pregnant, how long did the OB keep you on it? I'm looking forward to the non-sluggish feeling soon, but if it's necessary to continue consuming for the sake of the baby, I definitely will continue!