"No!" said her mother.
"Please..." replied Joan. She began to cry. It may have been hormones, or it may have just been her imagination making her more likely to cry when she was a girl. "Mom, I need that stone! Just let me hold it..."
Joan cried, and her mother said "I don't know why you want this... But here. Look at it and then put it away. We need to get you ready."
"No, we don't," said Joan, her tears stopping and more confidence in her voice. "I wish I just had five minutes to myself. I wish I wouldn't give birth or have contractions in it, either."
The world halted. Everything was silent except for her own breathing. No people, nobody talking, no clocks ticking, no doors opening, nothing. It was what she should have done in the first place. Being in a hurry or arguing with another person are some of the worst times to make wishes.
"I wish that having to wear skirts, tight clothes, and makeup all the time meant having to wear skirts and tight clothes once, and makeup all the time. Also, I wish that nobody thought it was unusual for me to wear that stuff because nobody noticed me."
That should fix the second biggest problem. Joan should be able to change back to Jon now, though the makeup was still a problem.
Of course, there was the biggest problem. How could she become un-pregnant? That was such a direct wish. The only thing she could do was try to make it a bit less of a problem. "I wish that I just suddenly got pregnant for no reason, without having a boyfriend, but nobody thinks that's strange."