Welcome to Fitday.
I'd say your number look fairly close based on the calculators I use. Keep in mind this is not an exact science for anyone. If you can get your actual results close to your projected results you're doing great. For me, and most here I'd suspect, these tools are used as a guide to help us stay on course.
For you, since you say your activity level is non-existent, I would image that your burn rate is much closer to your basal metabolic rate than to the sedentary calculation, which going to be almost 100 calories less. This would put your burn somewhere around 1370 (a complete resting rate would even less), though you could actually be doing the 1470 as FD states. At any rate, with your average consumption at 1100 you can expect to lose from 1/2 to 3/4 of a pound per week depending on the actual burn rate. Just track everything as best you can and you will learn of any variances and how to account for them. If you're like me it's likely that the variances will come from not meticulously measuring food. I tend to guesstimate portions. (maybe that's why I've been gaining lately...
As for your other inquiries regarding hormones and cycles I can't help you.