Period Date

I am newly off my bc and I am not compeltly regular yet. I had to do I am late so it pushed my start period day back a week. When I stated it was a day before glow said I am supposed to start so it would let me change my period to the day before because it is too close to my next period. If we could have more freedom on how we track our period that would be great. I also know this is a known issue, but I am hoping the more people say something about it it will get changed.