Missed period – 4 days late?

emma Asked: Missed period – 4 days late?

My friend wanted me to post this for her, because she doesn't have an account.
She's 17, and no longer with her boyfriend… and her period is 4 days late. She was feeling sick a few days ago, but hasn't felt sick since yesterday. Her period has never been late before, and her cycle is 25 days. She got it Thanksgiving last month, but hasn't gotten anything since. Could she be pregnant? Or is it the stress from her breaking up with her boyfriend just last week? She's worried, cause she still lives with her parents n everything. She's been having cramps, but no period yet.