Well so far so good, so why won't the scale move?

Ok I've been doing really well. Staying within my calories and getting exercise in, so why won't that darn scale move? I worked out really hard yesturday and it felt SO good! So this is what I know for sure. 1- I'm so addicted to the internet and blogging and 2- I LOVE LOVE LOVE to go to the gym!!!!!! So you'd think that would work in my favor right? It's really starting to bother me. I know I know muscle weighs more than fat...blah blah blah....and I am losing inches cause I'm in a size 18 when I started I was size 24....but still it doesn't LOOK like I'm losing weight....just don't know...what gives ya know? Oh well I'm hoping to talking my sister in taking my kids so I can go workout for an hour today...we're going shopping and I really REALLY want to get my workout in!!! Well off to dress kids!