If you are exercising now after a long period of not exercising, you could be gaining muscle mass. So even if you lose some fat, you may not lose weight.
Also, two weeks is a very short time period. Healthy weight loss is very gradual. Instead of focusing on losing weight, I recommend focusing on having a healthy lifestyle (well balanced vegan diet rich in a variety of veggies, fruits, whole grains and legumes; moderate regular exercise; plenty of sleep; plenty of water; minimizing stress, etc.).
When I became vegan and started exercising again I stopped weighing myself. Eventually I started noticing that my clothes started being too big, until I had to buy all new clothes. About a year after my healthful lifestyle changes I finally weighed myself and found that I'd lost 35 pounds! So, that's less than a pound a week. Because I've kept up with my healthy lifestyle and focused on health rather than weight loss, I've maintained what for me is a healthy weight (not skinny, but fit) for over five years now. I rarely weigh myself these days.