TTC 5 years with no joy. fertility doctors?? what to expect. please help

Vikki
Me and my partner have been TTC for about 5years. We already have a daughter who is 9 this year.... the last year it's got more serious using ovulation tests etc and in 12 months iv only ovulated twice.... were now awaiting a appointment with a fertility doctor, 
Has anyone been in this situation??? What can I expect??