Before I found out I was pregnant with my daughter, my breasts were very sore. It only lasted for a day or two and really the only reason I took a HPT was bc DH wanted to drink wine that night. I tested so early that I could barely see the line. I was so symptom free from that point on I was convinced that it had been a chemical pregnancy. 8 weeks later I got to hear her heartbeat for the first time Only time will tell, but don't worry about the disappearance of symptoms. Best wishes for you!