Yes, she is at risk. If she's not taking the pill, she will ovulate. Sperm can live inside a woman's body 3-5 days, making it possible for her to conceive if she ovulates early. My physiology teacher told us last semester average day of ovulation is now believed to be day 7, but it can be sooner/later, depending upon the woman.
Thanks, so you think she should take the morning after pill to make sure she doesn get pregnant?
Today was supposed to be her new pack but again she decided to stop taking the pill so since we just had unprotected sex not to long ago, can she be in the risk of becoming pregnant?
You can take up to 72 hours (3 days) after unprotected sex, not 120 hours. If she manages to conceive before she takes Plan B, there will be no harm to the newly made baby. She could take it now, the sooner the better. However, make sure she knows the side effects of Plan B as it is just a huge dose of birth control and should not be used regularly, only once in a while if another form of contraception fails. She may experience a delayed period or a longer period or an earlier period or spotting or all kinds of things.
From now on be sure to use a condom and ask her to talk to her doctor about other forms of birth control. Different pills have different things in them, and it may just take her trying a different pill to get the right level of hormones for her body to react properly. The pull out method is not necessarily going to keep her from getting pregnant in the long run as pre-ejaculate can contain sperm, and all it takes is sex a few days prior to ovulation and one sperm getting to the egg.