Super Sleepy

I have a couple of days until I am supposed to get my period but there is a chance I could be pregnant. This afternoon a wave of exhaustion hit like a semi truck at about 4:30 pm and all I had been doing is crafting for my upcoming wedding. I am hoping I have a cold or something because if this is a symptom of pregnancy that will last more than a couple of nights I don't know how I will get anything done haha! I can barely see I swear.