Losing weight while pregnant?

Jennifer

So I'm nearly 14 weeks now and I have lost about 8 pounds rather than gaining anything. I was a bit overweight before getting pregnant and all anyone has said to me recently is that I am looking thinner. Not sickly or unhealthy, just smaller. Has anyone else experienced weight loss instead of weight gain? I HAVE read that sometimes when women are overweight pre-pregnancy that that could possibly lose weight... but it just seems strange and concerning.