20 months ttc

Gemma • ttc#3 for 31 months 😢
Eurgh tbh it's taking its toll now! I have two beautiful boys so I am very lucky! But just thought one last try and here i am over analysing everything 20months later 😥!! I salute all you ladies that have been trying for years for your first i really do! 
Could having the cooper coil on for so many years affected fertility in some way? I haven't been for any checks thought I'd leave it up to nature as I already have two children🤔!! Would love some advice xx