I have had to take progesterone with 2 of my pregnancies. My first time taking it was by injection. I don't really remember being tired. Just that my injection sites hurt really bad after a few days. My current pregnancy I started taking prometrium in 100mg capsules 3 times a day 3 days after ovulation. I was extremely tired the whole time on it. The only thing my dr said I could do was to take a b6 vitamin at the same time. It also helped with my morning sickness. But I would have her ask her dr before she starts taking anything to help.
I agree with mikaleen. I to had to take it and was told to take it at night. Even the next day though it made me SOO tired, I could literally nap all day lol. Good luck as well. :)
I took it for a past pregnancy, my Dr. told me to use it at bedtime so if I was feeling dizzy I'd be laying down and it wouldn't interfere as much. Sorry I don't have any other suggestions. =( Good luck!