Late period

Ashley
My period is always a 28 day cycle. Not even a day late. I'm now 4 days late but have gotten 3 BFN's. I'm not sure what the next step is but I'm at a loss because I never have an irregular cycle. This is coming at a bad time because we are seeing a specialist on April 9th because of my husbands test results and now it feels like there's an issue with me.