when can dr see something on u/s?

andrea0418

I had a ectopic rupture in aug and lost a tube and ovary so dr is watching betas till they are high enough to make sure they see the sac in my uterus. But my question is what does my hcg have to be to see something? I went mon and it was 114.9  went today and it was 290. So it doubled in the 48hrs like its supposed to which is a good sign. But im not gonna be able to relax a little till i get the u/s!!! How early did u ladies get an u/s???