Endometriosis With IVF

So I went through IVF unsuccessfully about two years ago. I recently just found out I now have a retroverted uterus. My doctor (who is new to me) was going over diagnoses that could have caused this and one was Endometriosis. I did not even think about it at the time but is there ANY chance that the fertility clinic would have missed it? I never had a biopsy done during the whole process so I'm a little concerned being that the symptoms I've been having line up with Endo. Wondering if I should go forward with additional testing for endometriosis or let it be because they would've noticed and said something!