Hey, cheer up!
At least they're not chestbursters XD

Where's the daddy? I bet he'd want to see this.

Eggs or live birth ?

Starting to speak like a vaporeon? How much longer can she hold onto her human mind?

Painful birthing seems like. Heavy breathing that's causing her to slip into Vaporeon language. Gotta wonder if this litter is going to be eggs, eevees, or more vaporoen. Transformation pregnancies can be tricky.

vaporeon could possibly use there ability to melt to painlessly lay eggs

Sexual fun always comes with consequences in the animal kingdom. As a human she thought she was above that, but now a vaporeon she can do nothing about her biological functions following their natural ends.

Reproductive compatibility with her earlier sexual partner leaves nothing to doubt, she's vaporeon now, and she's about to contribute to the population :P