Finally doing IVF

I feel like kicking myself for not doing this sooner. We did TI for 2 years with nothing happening. Started seeing our RE did TI with injections and had a mc last year, then in a last ditch effort did an IUI in August all BFN. So we finally bit the bullet and we are now doing IVF. I'm hoping that since I got pregnant before then I will again this time. My cervix has to be dilated which could explain why I'm not pregnant now. Anyone else finally go to IVF when everything else failed?