Doctor prescribed 200mg of prometrium/progesterone after seeing low levels with first blood test.

I am feeling beyond tired and have a weird exhaustion dizzy nausea thing happening. Like so tired I am slurring my words and not seeing straight. Also my sex drive is zilch.

Anyone else gone through this? What side effects did the progesterone have on yall?

Is this exhaustion exponentially worse because of progesterone or just fools old fashioned pregnancy yuckiness?