My poor baby girl

So Mommy is really worried tonight....Took Brezlyn into to the doc. because her cord has not come off yet and she is 6 1/2 weeks old, way to long to still have that dumb little thing on. They told me on the phone that they would put this stuff on it to help it come off. Well they did that then the doc. tells me that she needs to go have blood work done because the cord was really not letting go on it own and usually that means the baby has a white blood cell diff.! Wow so now I am really scared because they did not take the blood from the heal they took it from her arm like they would you or me.....She did really good with that and even smiled at the nurse before, so proud she was so Strong because I am going crazy on the inside. Please pray that nothing comes back bad and that she is fine and that the cord falls off in 3 days or we have to go back to have the stuff put on it and it really did not make her feel good today.