Symptoms a week before period due?

I have been nauseas for the last two days which is not the norm for me at all. I have also been pretty tired lately even when I sleep 8-10 hours and have had some very vivid dreams. My period isn’t due for another 7 days. Is it possible to be having pregnancy symptoms already? I feel like I am crazy for even thinking it MIGHT be that so long before I am even late. Trying not to fixate too heavily on a BFP too early in case it doesn’t happen. Had a miscarriage in August and don’t want to get my hopes up but also definitely don’t feel like myself. So confused!! And nauseas..... still really nauseas 🤢