6wks 4D pregnant. Lower abdominal tenderness above pubic bone when touched. No bleeding or cramping. Negative for uti. Suggestions on what could be?

Pregnancy... Please make sure that you have seen your OB for your pregnancy. Seeking opinions online can be reassuring; however, they are no replacement for the close medical care you should have during a pregnancy. That being said, a growing uterus (and surrounding ligaments) can be slightly tender. If you have ANY increase in pain/other symptoms, contact your doc immediately and make those prenatal appts.