Nasty smells

Don't worry, this isn't about poo! You may remember one of my odd symptoms of being pregnant was nasty smells, in particular bananas, myself and soap. I just brought a refill for our soap, and realised that it does just smell nasty. I normally get the branded one, but got the cheap one this time, and it doesn't smell nice. Either that or I'm pregnant again... that banana did start smelling a bit funny....