Just curious, I know somebody who is currently taking alesse for birth control. And one week ago Sunday, the start of a new pack she had unprotected sex with her boyfriend, She also thinks she lost a pill on the following Tuesday and she hasn't missed another pill. She has been on the pill for around 2 years and is a little worried because she has had some brown spotting yesterday and today and some cramping and thinks she may be pregnant. Is it likely she is pregnant? Or is she getting herself worked up over nothing?

Timeline
Sunday May 2nd - Start of a new pack, unprotected sex
Monday May 2rd - Started taking neproxin as an anti-inflammatory
Tuesday May 4th - Thinks she lost a pill
Monday May 10th - Saturday May 15th ---> Brown Spotting and a few cramps

Now im starting to get concerned for her after having these symptoms for five days, any ideas on what it could be?

Thanks for any help!!!