Sounds possible. Did you take a test yet?
Hello again! Constant hunger in very early pregnancy? - Page 2
If you only had one miscarriage, there's no reason to believe it will happen again. I had an early loss in April with low levels, and I am 8 weeks pregnant now. My levels were great in the beginning. I would get a blood test and have them repeat it a few days later to see how the level is rising. Good luck!