Rochelle Humes can't give up wearing ''killer heels'' even though she's pregnant.

The Saturdays singer - who is due to give birth to her and husband Marvin Humes' first child this summer - is still wearing towering footwear when in public, but admits she has to change into more comfortable shoes when she is in more comfortable surroundings.

She said: ''I've always got the killer heels in my handbag. I usually wear ballet pumps for the rest of the day, but if I know I'm going to be photographed I quickly change. I only wear the heels from the building to the car.''

Rochelle also admitted she's finding it hard to judge pregnancy fashion, and pick the right clothes.

She added in an interview with new! magazine: ''You can't really wear your clothes in the same way because nothing fits how it used to - or fits, full stop!

''It's not easy at the minute, so I had a stylist to help me for London Fashion Week. But on a day-to-day basis, I don't have help, so I'm like, 'Oh God, what am I going to wear?' I just want to be comfortable all the time.''