Phantom smells??

Okay this seems crazy to me (and I feel crazy when it happens) but I have been smelling things that are not there! For example, early this morning I woke up and could smell this gross food type smell SO strongly in the bedroom. It smelled like my dogs' wet dog food so I was looking everywhere to check that my dog hadn't thrown up in the bed (he is on medicine and did it twice this week, ugh gross). But nothing! Everything when I smelled it directly (bedding, pillows, etc.) smelled like laundry detergent! What in the world?!

I have read this is common in pregnancy...AF due 9/7 and haven't tested yet. Could this be a weird sign?! 🤷🏼‍♀️😟