Pink belly : Shed ?

My big girl has had a pink belly since the 25th, it's encroaching in 5 days and she still hasn't gone into blue, at what point do I start worrying that it's a burn or possibly belly rot ? It's just pink, no blistering or anything.

My girl sometimes has a pink belly for up to a week before she goes into blue. I wouldn't worry about it quite yet but keep an eye on it just in case.

Thanks, I've been monitoring her for brown spots, blistering, and other signs of rot and burns. I just woke up and checked on her and she finally went into blue.