all children are different. IMO, she is not progressing b/c she isn't ready. Plus, you can expect much more regression after the baby arrives. I hear you on the diapers & not wanting to go back, but she has to decide when to go forward.
S was a month shy of 3 when she announced she was done with diapers (of course she is still in them at night). E plays with the idea & has made it to the potty a few times, but I think she wants to be like S. Who knows.
Elizabeth Pantley has a No Cry Potty Training book.
I wish you well!

My mom used to have a big bowl of M&M's for potty training and we'd get 2-3 M&M's every time we used the potty. It worked pretty well. But your babe's not even 2 yet so I'd give it time.

it may be too early. what we did with nessa is we just made her wear panties and cleaned up a lot of mess, she learned in one week. she didn't like to be wet or messy.in the year now that she has been trained she has had 4 night time accidents after that first week. she did not start learning until she was 2 years and 6 months.maybe it's just too early mama.

Jessica
Be who you are and say what you feel because those who mind don't matter and those who matter don't mind~~Dr.Seuss