I haven't had a period in 3 months. I have took 3 home pregnancy tests and 1 blood test all negative. The only symptoms I have had were headaches,cramps, breast hurting and missed period. I have an appointment next Wednesday to see what's wrong with me. My last period was in September. I just don't know if I am or not because I have read so many stories online about women who didn't detect that they were pregnant until they were 5 months. So let me know what you think.