I have taken 2 rounds of iui treatments. 1st time my husbands count were lil less, and in second all the parameters were fine. Hystrosocpt also done. Both tubes are fine. Endometrium last was 10. 1 mm.60 ml sperm with 98% moritilitt, 2 follicles each sizing 20 mm and 23 mm. Still it failed. Can you tell me why did it fail? And I should go for ivf or contribute few cycles with iui only. I am 35 year old and husband is 36. I am very worried. Please help.