It's not me, I promise 
Every time I have been pregnant, I get a certain smell I can feel in my nose, it's nothing around me, happens everywhere and anywhere, and is really strange.
It's not massively unpleasant. I started getting it yesterday at 5 weeks and a bit. I don't feel sick yet (though I did a couple of weeks ago, briefly) and it seems pretty random.
Does anyone else have this? I've tried googling strange smell during pregnancy but all the answers that come up are about YOU smelling weird, not something else 
Does anyone know what causes it?