TTC since a year..

Dipti
Hello, my Husband and me are trying for our second baby since last year but I am not able to conceive. My cycle is also irregular sometimes it's 30 days and at times 40 days so I am not sure when I am ovulating. My hubby says he can't have sex on a particular day just because I am ovulating. I went to see my gynaecologist the other day and she said that she needs to get my Fallopian tubes tested and make sure that it's not blocked. Also needs to test husbands sperm- he is okay with that next month. 
My question is that isn't my gyn jumping a bit too far.. Maybe she should get my cycle regular before we do all the test. Btw she could see egg in scan which was 13.7 mm and also FsH and TSH is normal. Looking forward to your advice. Thank you- Dipti