Thanks for the feeback all.

Hubby was drinking diet soft drink because I do. Hes more than happy to swap to 'full strength' drinks.

He doesnt drink coffee, alcohol or smoke.

He did have a read over my shoulder and is going to get some zinc tablets and said hes happy to let the 'boys' swing in the wind

We have decided to 'see how it goes' from Jan to April and then start to get more serious about it. I know 4months isnt a long time but this has been on and off since we got married in 2007 lol.