Dear Sir/Madam, I am very worried and I would appreciate any answer you can give me. My periods are normally very regular. The last period is late for 20 days, I have crumbs for 2 days already similar to period pains, but nothing is happening yet. I made two tests and both negative. Called the E&A and they said to take two paracetamols and to visit the GP in the morning. I am still worried what could cause this?