Late period

Stephanie

I get my period every month and I am currently 14dpo and my period is 3 days late which never happens. I tested 3 times earlier this week, 2 tests were negative and then the one in the pic which is unclear. I found out on Christmas my sister in law is pregnant and idk if the stress from the that is causing a late period. I have been really crampy the past few days and don’t know if I’m reading into something that’s not there. I bought some pink dye tests that I’m going to take in the upcoming days ….any input would be great.