Why do you need to be weighed? Can't your trainer just caliper test your BF? If you are not gaining around your waist, you aren't gaining fat. Who cares what the magic number says...it's of no relevance to anything.
I am the same height and weight as you, although I haven't weighed myself for weeks so who really knows (I need to update my avi!). I am wearing the same size jeans I was wearing when I weighed 12 or so pounds less. They fit much better now. My abs are visible too now.
I used to weigh myself every single day, often more than once

I no longer attach my self worth to that stupid number. My scales live in the shed...my trainer wants me to run over them with the family car
1 pound of muscle is denser and takes up a lot less space than 1 pound of goo (fat). Hence the irrelevance of scale weight.
If you keep freaking out about the scale weight it will eventually hinder your attempt to build beautiful lean (heavy!) muscles....relax, it's ok