Hello Tara and welcome.
First of all, the presence of blood during or after intercourse is a repeated indication for a pap smear
, as it has been over 2 years since your last one. As your husband has been thoroughly investigated, I think may require a hormone level check and an abdominal and pelvic ultrasound
along with the suggested pap smear just to make sure all is well.
Conception, as easy as it may sound, is a complicated process and I would feel moat comfortable if you were under the supervision of a doctor for the same.
Hope this helps.