Super confused about some parts of the App?? Help??

Natalie • 25|| Married to my best friend♥️|| Elijah 3/19 ♥️ Baby #2 11/22 || Born-again Christian||

First is there a reason I can see some comments and not all? Like there are ,50 comments and I can only see like..5? Or when there is a comment and I can't see it? Secondly, will the app be able to adjust my cycle length? Based off my most used and oldest app(<a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Period tracker</a>) my cycle average cycle is 39 days at the moment. Used to be like 32. Passed three cycles have been super odd and weird. Anyways will Glow be able to adjust it even though I have it as such?