Please help.

I am so frustrated. I am now 4 or 5 days late for my period and still have negative test. I haven't been symptom searching at all I swear. However I was feeling nauseous on Friday and had to leave work early. Also I have increased rest room visits and I've been cramping for the past week as if she was coming but no show! I just don't know what to do anymore. I have honestly been late before however I had no real symptoms and definitely no cramping. I am hoping for my bfp but it's so stressful! Has this happened to any who received a bfp?? Please give feedback I'm lost.