Progesterone suppositories

So I was given Letrozole and the trigger shot to ovulate. Ovulation was confirmed, but it was confirmed on the side that is mostly blocked. I haven’t had surgery, just the in office tube check and they said it’s not 100% accurate that it is totally blocked, but most of the water ran back out and didn’t go through. They said there could be a very small opening that the sperm and egg could fit through, but it isn’t totally open.

I started the progesterone suppositories on Sunday (3 days ago) and I am incredibly nauseous and exhausted. Did anyone have these side effects just from the progesterone or do you think these could be pregnancy symptoms too? Any insight? I go back to the doctor on Monday (about 5 day’s from now) for my pregnancy test.