my mum advise

Andrea
Told my mum I want to go speak to my GP about getting pregnant due to been trying for nearly 2 years.
Mum told me to go buy a temperature needle
And take my temperature like they use to do back in there days. As that what her doctor told her. 
I have been using ovulation kits and nothing. 
Should I try my mums idea or go see my GP?
Thanks