If you have missed your period and are pregnant, you most likely got pregnant around 14 days before your missed period.
The short answer is yes. If you have had unprotected sex you could be pregnant.
You could be. Take a test
No not likely.
you could be but it could also be late
you could be having a miscarriage
You could be pregnant. Or your body could just be changing causing your period to be missed.
No, and your grammatical skills are putrid.
not really it could be starting late
You might be pregnant. Or it could be another hormonal change.
If your period is irregular it could miss a couple of months but if it is regular it should not unless you are pregnant