My Cuckoo Marans Pullet is 5.5 months old and has not yet laid an egg. Earlier she began acting funny. Was sleeping with the younger birds. I didn't think too much about it. Hubby went out to check on the chickens and threw some goodies out to them and she didn't go after any. He stood her up and she fell over. He brought her to the porch and I looked at her and thought she looked like she'd been jumped by a rooster and was probably upset by it. So I decided she would stay on the porch. 10 minutes later she is breathing hard and laying on her side with her legs out straight. She would lay motionless then go into "fit" mode, flap around and back to the way she was. Her vent area hot and Is puckered outwards. I used a gloved finger and could feel a rather large egg and she was able to pass a large amount of waste when I did this. The egg feels as if its about 1 inch inside the opening. I have her in a dog crate covered in blankets with a himidifier and heat lamp on her. I read keeping her temp between 90-100° and increased humidity will help but I'm not finding much else helpful info. What can I do to help her? I really don't want to put her down.