Hello Aria. don't worry about things for at least the first month. Going on LC changes the insulin in your body and since insulin is a master hormone, all the others are affected too. It is not unusual to skip a period, have an early one, or have spotting or breakthrough bleeding if on a low-E BP. So give it another cycle to adjust. The apparent gain could just be water retention from PMS. This too will change.

The hunger isn't a bad thing. (If you were forbidden to eat it would be awful.) I often find that I am starving the day before I lose some weight, so go ahead and eat until you are satisfied.

I think that you will soon see a change in the scales, or in the measurements of your body that I hope you took. Have you got a piece of clothing that was too tight? try it on in a few days and you may be pleasantly surprised.