Thanks for your answers Patti.
I do not see anything that raises a red flag in your answers - good food, good meal schedule & amount, etc.
I really believe this comes down to a housebreaking issue where she simply has not learned to poop outside.
Dogs are very regular when it comes to bowel movements. What I suggest you do for the next 7 days is:
Keep a log of the times of the day she poops. You'll find the regularity of her pooping will give you the convenience of knowing very near the time she is ready to poop.
Chose an area where you would like her to go outside. When it's about the time you think she should go, take her out, have her on a leash (it can be a longer one) and be prepared with treats/praise just like you did when she pee'd outside. Be patient! Sit on a chair with a good book if you have to. This is the toughest part of the training however you will be glad you did this in the end.
When she is inside - it will be critical you limit her access to the house and increase the supervision. You can do this by placing her into her kennel when you cannot supervise her 100% (don't be afraid to use the kennel for housebreaking - they are wonderful tools so take advantage of it!); tie one end of the leash around your waist or belt loop and attached to her. This way, she can be free to play with a toy or roam around with you but you'll be right there when she shows signs of needing to go. If she is about to poop or she's already started - say "No!" (but not too harsh or loud or she'll be afraid to poop anytime in front of you) and immediately take her outside to a designated poop place. If she poops a little or a lot - praise and reward excessively!
Note the improvement you see after 7 days. At this time, if you are consistent with the methods described above, I truly believe you'll be satisfied with the results seen. Continue to use these methods until you are 100% confident she is completely housebroken. Many times owners will give the benefit of doubt way too early in house breaking and the pup will revert back to it's old ways very quickly.