Sleep Training – Regression (Please Help)

Some background: I have an adorable 19 week old puppy. Crate training at first was a little tough. But she’s been great for weeks now! Even when she was getting up in the night to go potty, she’d settle back down in the crate rather quickly.

Now the issue: The last week or so, she has been getting up in the middle of the night (new as she’s been sleeping great through the night for weeks) but now on top of that, she is not settling back down after going potty. She keeps crying and will not settle. Sometimes this is happening twice (and well before our wake up time)

Any tips? Or is this simply the sleep regression period and it’s temporary and you just have to ride it out? If you dealt with this, how long was the sleep regression/what age?

Thank you in advance for any advice.