My fully BF bub (although with some formula top ups) went for 21 days without a poo.

Yes you read it right. Twenty-one.

I ended up washing the baby, the cot, the sheets, the walls, and the curtains.... of course it was 4am as well!

Try not to stress to much. The MCHN and dr will only get concerned after 3 weeks. Well that was what I was told...