Can I ask if anyone has smelt burning rubber while pregnant?

[temporaryname2015]

Hi
While i was lying in bed recently i had the destinct smell of what I can only describe as burning rubber in the back of my nose. I had a strong sense it was only something i could smell and there was no source for it to come from anywhere. I have asked one person if they have ever experienced this and they said no. I don't want to ask more people in real life as I don't want to sound mad. So has anyone else experienced this while pregnant or experienced this then later found out there pregnant ?

Replys greatly appriciated