my peking duck is 34 weeks old and has been laying for about a month already. 3 days ago she looked constipated.. and then i checked on her again and she had 2 eggs back to back in the coop. so when i picked them up one had no shell and the other did. so then 2 days passed and i didn't get any eggs and she looked like she was pushing. then this morning i went down and saw there was one egg in pieces all over and one egg again. is she sick? or just having a hard time? also i am giving her layena nutrena food, pond fish, lettuce, basically anything she wants lol. so i dont know what im doing wrong but if there is anything i can give her id love to find out. THANKS!