Hello. I am a 21 year old female. I have had 1 live birth in 2013 And I had a miscarriage in 2014. I believe I am pregnant again because I am having all known symptoms of pregnancy. My lmp was on June 10, 2015 and I was diagnosed with mettleshmertz on June 26. I have taken more 5han 5 pregnancy tests at home which have come back negative and a urine and blood test at the hospital, 2 weeks ago, which was negative. I have swollen, sensitive breasts, unbearable headaches, back pain, nausea and dizziness. I experienced brown spotting on July 6th, but no period. Is this too early for a sonogram? I want to relieve these symptoms i have but not until I find the real reason why I have them.