NHS IVF question

Kelly • Baby number one on board!
Question for couples that have had <a href="https://glowing.com/glow-fertility-program">fertility treatment</a> on the NHS.
Hey, 
My Fiancé and I have been TTC for 3 years now. We have started undergoing fertility testing, my bloods show that I'm ovulating. However, OH's first semen analysis showed low count and motility. He is due to provide his second sample this month as I think the GP stated that one sample is never taken as confirmation. 
We get married June 2018 :)
My question is, how long were you waiting from initial fertility testing to <a href="https://glowing.com/glow-fertility-program">IVF</a> or other fertility treatments? I'm kind of worried that it will go ahead in the close run up to the wedding and may add stress at an already stressful time. Any info you have would be much appreciated. We live in Lancashire.