You could be pregnant
Yes, as soon as you ovulate you can get pregnant.
as soon as she stops producing eggs
Yes, you can be pregnant, your period stops after pregnancy, if you recently had sex and your period stopped early you probably are pregnant.
Yes
You shouldn't be. When a woman is pregnant, she releases a different hormone which stops her from having her period. She also stops producing eggs during that time, I recommend you go and see your doctor/specialist.
Your period stops when you become pregnant. Some women do bleed a little while pregnant but it is not a regular period and a doctor should be consulted.
You ovulate two weeks before menstruation - thus the soonest you'd skip a period is that first period, two weeks after you get pregnant.
After a missed period about 16 days.
Yes, you can. If you think you might be pregnant, go and get a test as soon as possible.
If it's your full blown period, chances are 99 out of 100 you're not pregnant. When you're pregnant, your cycle stops. There can however be spotting (usually early on).
usually it takes a cycle