DH and I were ttc for 6mths with no luck and then the next two cycles we tried pre-seed and 2-3mths later, got our BFP!!

Yep definitely worth giving it a go I think...... especially for me as I found that I wasn't "moist" enough quite often down there so it probably didn't help either, whereas preseed mimicks your natural lubricant. Helps those little swimmers reach their destination

Good luck hope you get your BFP soon