Trying for pregnancy

Hi.

My husband and I are recently trying for a kid. I have anxiety, which is bad, I know, but on the plus side since being diagnosed etc my periods are far more regular than they were. I actually have a roughly 28 day cycle now.

I have medication for my anxiety. We have been together for nearly 6 years and have never seriously used contraception. Mostly to stop the wet spot (Ha Ha)

I'm 35 and a half now. I've recently learnt about the meaning of the change in mucus etc, and we were at it like bunny rabbits...

How long until you can confidently use a pregnancy test? And are we (as we say in England) 'Weeing' in the wind, if after 6 years of irregular condom use nothing has happened (we weren't previously looking to have a kid, just laziness in part - I had too many years on The Pill previously)

Thanks