Close to 100%
While ovulating is precisely the time you can get pregnant.
Yes, most certainly!
I would be inclined to believe the pregnancy test, but take another one to be sure.
After ovulation an egg can survive in your body from 6 hours to 24 hours.
Not necessarily. What matters is if you are ovulating. Having a 28 day cycle is a good indicator that you are ovulating regularly. You can use an ovulation prediction kit to find out the day you are ovulating and try having intercourse then. Typically if you are under 35 and not pregnant within a year or over 35 and not pregnant within 6 months you should see your doctor.
No.
If a lady is no longer ovulating then no eggs are being produced and therefore she can no longer become pregnant.
If you are not pregnant, and not on your period, then it probably means you are ovulating. The cervix opens up when you are ovulating, and it becomes 'slimier' to help aid the travel of the sperm. If you are pregnant, then it just means your are pregnant. If you are not pregnant, and not ovulating, then it means you are about to have your period.
If she is ovulating, she can become pregnant. But that is the only way. If she is ovulating, she can become pregnant. But that is the only way.
Yes.
The ultrasound and pap smear have no impact on your fertility. If you had sex while you were ovulating, you could be pregnant.