Ladies help!

Prater
According to my last period I should be 6 weeks and 3 days. But I went to my ultrasound today and i measured 5 weeks and 3 days, and they didn't see a fetal pole or a heart beat. They said it was cause I was so early but then they also said I had fluid in either my Fallopian tube or ovary I don't know which one. Has anyone experienced anything like this and had a healthy baby?!