Certain smells making me nauseous?!?!

Ok so ive had BFN today and yesterday, im due for my period tomorrow from what glow says, but ive been nauseous to smells that usually dont bother me or smells I dont normally nearly vomit on the spot. My husband is military and always in his work boots ( yep, all day ) so when he takes his boots off I can usually smell his stinky feet, but it's never made me want to vomit on the spot like this morning! And the smell of ramen noodles, I never had a problem with that smell before, my husband made some for lunch, he adds suracha witch I think smelt good, until that particular day! I could hardly wash the bowl he ate it out of without gagging. I've been pregnant before, but it sadly ended in a mc last month. But now I have that symptom back! Along with feeling like im starved! Counld it be aunt flow? Or signs of pregnancy?