First time posting 2 years TTC not sure what is next step?

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Hi!! Am looking if anyone can point me in the right direction finding it all a little bit overwhelming!! Have been trying for 2 years with no luck, all of the tests on NHS have shown nothing so far and have said most likely unexplained infertility. Had HSG last which was fine and am waiting for appointment with the consultant to know what to do next. It seems like forever waiting and we are thinking of going private but not sure how or what's the best way. I'm 30 with healthy BMI, husband is 31 we don't want to spend thousands if not necessary or to the wrong people but it's agonising waiting so long for a 5 min appointment for them to say they don't know!! Any help would be much appreciated! Thankyou