Daughters belly button

[Timetogrowup2016]

We noticed this green ish spot on dd belly button this morning.
She is 5 and a half weeks old and her cord fell of on day 10. We have had no issues so far.
Six week check at doctors on Thursday but should I take her before hand?

I would check with GP,although from what my midwife said, you shouldn't worry much unless it smells

Looks a bit infected whatever it is, can you take her to out of hours Gp?