Are headaches feeling unwell and hardening of the lower abdomen signs pregnancy when you have not yet missed a period?

While headaches and abdominal hardening can be early pregnancy symptoms, they are not definitive signs. Many other factors can cause these symptoms, such as hormonal fluctuations, stress, or underlying medical conditions. If you are concerned about the possibility of pregnancy, it is best to take a pregnancy test or consult with a healthcare professional for an accurate diagnosis.