Get smaller arms and legs in 1 month and a half?

Posted: 14 Jan 2015 01:09 AM PST

I've been working out about 2 weeks ago, and i can't see changes. If i look at the mirror, my arms looks like its getting bigger. And i was like WTF. And i need to get thinner within 1 and a half months because of our field trip and I want to wear anything so yeah! Help?!