Side effects from progesterone?

Has anyone else experience extreme fatigue from progesterone suppositories? I take 2 100 mg suppositories twice daily for a total of 400 and I'm also using ectrase and when I off work today I slept all evening and when I got up I could barely keep my eyes open and I'm already laying in bed again... I just feel so tired! I know this will be worth it in the end. Any suggestions?