Gained weight, not losing :(

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Hello everyone,
I started using MFP around a month ago, and as the title says have been gaining weight. I am generally good at keeping on top of or under my calories yet have had days where I've gone over or snacked unnecessarily. I appear in person to be losing weight, however this is only visible to me :(

I would greatly appreciate if someone would be able to look at my diary and work out what ( if anything) is going wrong, or if it's just muscle changes from yoga?

Thankyou, and I hope this wasn't posted in the wrong place!

Katy :)