What tests can your GP order?? when TTC

[M D]

I know the GP won't refer until 12 mths without some sort of 'other' existing issue.

But surely there are some tests that can be done and gotten out of the way, maybe not straight away but after some months.

I fell straight away with DD but not having much luck this time around.

Does anyone have any experience with a great GP? I feel like if I ask and insist then I will be ok, I just need to know what to ask for.