Giving the potty a go at 22 months

If you tried this early, and it didn’t go well, what were the signs that you should back off and try again later?

We are only on day 2 and she has peed in the toilet self initiated twice, the rest of the times she has peed on the floor and I took her to the potty to reinforce pee goes there. It’s not going bad at all but she hasn’t pooped yet and we are halfway through day 2. If she gets to the end of day 3 with no poop should I go back to pull ups and back off until later? I don’t want to have her withholding, I’d rather try again later if she’s doing that this young.