Male Factor infertility

My husband and i suffer from male factor infertility, all of his blood tests came back perfect and the doctor cannot seem to find a reason as to why he has such low sperm count. We had a chromosome analysis test done today and should get the results back within 3 weeks. I am so worried that the test is going to come back with something and we will not be able to proceed with IVF. I’m scared and the wait will feel so long.

Has anyone had experience with this?