Unable to fully see via transvaginal at 6 weeks

Hi ladies, I was having quite strong cramps. Had a blood test on Friday and hcg showed 4325 and I had a transvaginal earlier today as it was suspected ectopic, but the only thing she could see was a tiny little dot! It was where it suppose to be, so not ectopic, but she thinks it’s not developing properly or it’s not 6 weeks. (but my last period was on 18th of Jan-I have it marked in 3apps!) Will have another blood test done on Monday to see if hcg goes up. Has anyone had that and did it end well or is there no hope?Thanks ladies