butt sweat­čśĆ

Wow this is TMI but I need to ask. My partner mentioned very nicely and gently that I smell a little sweaty in the butt area :/ in fact he was scared to tell me but we talk to each other about everything...and I do mean everything lol. I am petit and haven't even gained any weight yet (13 wks) but he said he noticed it last month. Yes, I shower DAILY and am clean....I have a constant stuffy preggo nose and don't notice it. Does anyone else have this??? Anyone? I'm the only one aren't I lol