Do you mean a) are they ugly? I find that's normally the case here Or b) are you worried in case people mistake you for an old lady?
If it's a) then why not just say so?
I think they're quite ugly but not not enough for my taste. To my eye there is something of the please-like-me about them which I don't think is ever stylish. I don't wear open toed sandals any more but when I did, I liked them unapologetically ugly. Let's face it, feet look funny and no amount of prettifying is ever going to change it.
If it's b) then I think it's highly unlikely given that you've said you're pregnant.
I am watching the football so a discussion about ageist stereotypes will have to wait until next time - I'm sure there'll be another before the end of the week.