PurdeyBirdie I'm in my forties and am trying to conceive my first child. Am very law-abiding, haven't even got a speeding ticket. 
I suffer from fibroids which make it tough but not impossible for a baby to implant.
My weight loss journey was triggered by a throwaway line on the NHS website which said that fibroids were common in people over 11 stone. After investigating why this should be, it turned out that fat produces estrogen (on top of what your ovaries produce), and the estrogen feeds the fibroids. Estrogen produced by fat is also what causes over-weight men to develop man-boobs, and can cause endometriosis and PCOS in women too. The best way to shrink the fibroids is to shed the weight which reduces the estrogen.
When that light-bulb went off in my head, I started getting serious about weight-loss - before that I was half-hearted about it, you know, try it for a few weeks and then find some excuse to come off the diet.
The timed eating thing does work, as does cutting back on wine. My top tip - eat a bowl of tinned grapefruit for one meal (say breakfast). Apart from producing lovely ewcm, it's an appetite suppressant and after the bowl of grapefruit you no longer feel like snacking. I've gone from 13 1/2 stone to hovering around 11 stone - am trying to get below it but am also hoping I've done enough for a bean to stick.