When will the weight loss stop?

Leanne

I am 12 weeks pregnant. By 8 weeks I had lost 7 pounds, but I wasn't concerned as I had been quite ill until that point. I was so surprised to find at my 11 week appointment that I had lost another 4 pounds! My appetite is back, I'm eating well and taking care of myself! WHEN will this stop? I started off at a healthy weight and I am uncomfortable with this weight loss!