Curious but slightly confused

Cherrish

So I know this is TMI but when I'm not on my AF I don't have any odor but when the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> tells me that I'm close to ovulation I start to get an odor when I start getting discharge. And I'm TTC for my third baby and just wanted to know if that's normal or not cause I don't have a UTI or anything so I'm just curious but also a little confused cause TTC with our second I didn't really pay too much attention to what the app would say or mean and now I'm trying to pay more attention to it and I'm starting to notice these things so if anyone could give an opinion or anything that would be great.

Thanks in advance😁