We had a protected intercourse just a day after her periods ended and 6 days later she has belly pain for a while and the next day pain in the lower back that did NOT last for 24hrs. And next day she felt a little nauseous while taking a single bite off a certain food. Later that day she just experienced a little tiny bit of blood come out. Now she is on the second day of her ovulation. I am worried if she is pregnant or is it just the hormones cause she was also tensed about her exam that she is attempting right now.