My 17 year old daughter had her last period on 29th May. She missed two contraceptive pills around 9th June and had break througgh bleeding for a couple of day around 9th June. She had unprotected sex around 13th June and has been experincing nausea and lower abdominal pain since then. She continued the pill (after the two missed), finished the pack and started a new pack on the 28th June. However, she did not get her period. She has a doctor's appointment tomorrow, but I am worried sick that she might be pregnant. Is it possible that she just has an infection of some sort, as I thought the pain was unusual. Can you advise me please.