We want to go to a theme park tomorrow but my wife doesn't know if she can ride rides she had our son 2 weeks ago.

Theme park rides. It is too soon for your wife to dp these kind of activities 2 wks after giving birth, she should be resting & taking care of her newborn & of herself. I hope that help. Good luck .
Vaginal or C-section. If she had a C-section, it may be too soon for her to be riding the rides as she may not be completely healed up just yet - not a chance worth taking. If she had a vaginal delivery, she should be OK.