Hi Carly! My daughter is also six and we also live in southwest Ohio - just east of Cincinnati. Right now we have 5 butterflies on our dining room table waiting for morning so we can release them. We also have about 30 more chrysalises. Do you know what kind of milkweed you have? We have common, tropical, white swamp, showy, purple swamp, and butterfly weeds in our yard.
Good luck on your eggs & caterpillars! Thanks for helping the monarchs!
Nancy in Cincinnati