My periods are very regular, and I am 11 days late for my period. I have taken at home tests and now a blood test yesterday which came back negative. Would you recommend that I get a second opinion- perhaps an ultrasound at a clinic? Where I live, they have a clinic called compasscare which provides free services. I have 0 signs of my period coming. The day of my supposed period and the following day I had mild cramping in my lower back but nothing came. I have been exhausted beyond belief and just have that gut feeling telling me something is there. Would really appreciate positive vibes and opinions right now. Thank you!