What helped you fall pregnant? Tips for TTC

I had TTC 4yrs and nothing. I left a stressful job, DH stopped smoking and we both lost 10kg. I got BFP the next month! We were both in the overweight category before weight loss, and I moved into the upper end of the 'healthy' range when initially pregnant. I can only assume a combination of several things helped that month.

I'd read about lycopene improving sperm quality. I only found a small amount of info, and nothing specifically on the dose, but DH now takes a multivitamin with lycopene in it. It takes several months to see a difference apparently. He had 2nd semen analysis recently and it was all normal, whereas the 1st one was slightly under the expected amount and 1 reading was only 35 instead of 40.

I never got a positive on any urine ovulation test- despite scans and blood tests showing I do indeed ovulate. I got a re-usable saliva style ovulation kit. Mine is called 'Maybe baby' but you can buy other brands online. Its like a tiny microscope. You put saliva on the end, wait for it to dry then look at the 'shapes', Blobs means you aren't ovulating whereas fern like shapes mean peak. I have now been TTC 9yrs, with 3 losses, so that has been far more economical that buying urine sticks every month!