Turkey basting? Has anyone done this with success?

My hubby is sterile and we have spent over $40000 on IVF with donor sperm. We are now using fresh donor sperm and doing it ourselves. 1 out of 4 tries got us a bfp only to lose at 7.5 weeks no fetal pole and sac stopped growing, had d&c. Tried two weeks after that with no luck and again next cycle and no luck there either. Trying again on 6th August and I'm looking for tips!