Sentence 1: My husband and I took our children too the playground. 
 Sentence 3: Our baby used the bathroom and needed a diaper change 
 Sentence 4:  Instead of rushing home we asked a fellow parent if they had one 
 Sentence 5:  The kind parent did and we were able to stay and enjoy the day 
 Option 1: After getting there we realized we had left the baby at home with the nanny. 
 Option 2: After getting there we realized we had forgotten diapers.