I came off the pill June last year and started folic acid. Started ttc in December and used opks to pinpoint fertile window. Not a lot of DTD that month as I had terrible flu for 2 weeks, but we got lucky and conceived. As I'd been ill I'd had almost no alcohol and caffeine for a month. No idea if that helped, but we'd had 2 weeks off work so were relaxed, if nothing else! Sadly that pregnancy ended in MMC.
We started trying again in April after first period post-MMC. I was back on folic acid. I drank more than usual to drown sorrows after the MMC though still only a moderate amount and only a couple of times or so a week. Stuck to one caffeinated drink a day, which is my usual. Got back to a healthy diet after the carb-fest of early pregnancy and lost the weight I'd put on. Had two holidays so should have been super-relaxed but actually had a huge amount of work stress as well as MMC-related grief. I was desperate to conceive but just couldn't, despite using opks, tracking my temperature to confirm ovulation, using Preseed and following SMEP. I was on the floor in tears every time AF turned up and was convinced I'd never conceive again. Cycles have always been regular since coming off the pill and stayed that way after MMC, but they changed in other ways after the loss (much lighter and shorter). I became convinced I had a hormone imbalance but GP signed me off work for stress and refused any fertility investigatons until I'd been trying for at least another six months.
I finally by July got to the point where work stress greatly reduced and I stopped feeling so desperate to be preg again by my due date (September). I just accepted it wasn't going to happen by then. I went back to doing yoga and started basic mindfulness practice, both of which reduced my overall stress and anxiety levels. I kept up all the ttc stuff, took a conception vitamin, but generally calmed the fuck down. DH kept up his moderate alcohol and massive caffeine consumption (much to my annoyance), though I confess that I did spike his coffee at home with decaff 
We managed to conceive in late July! I couldn't believe it. That cycle I had 'self-medicated' with various vitamins and other stuff to help boost my uterus lining, as I had convinced myself this was a problem, especially as I had a short-ish luteal phase. But, really, in one cycle I doubt that made much difference, and even if it did, I probably didn't have a problem anyway.
The point of this essay is that for all of the somewhat obsessive stuff that I did, my gut feeling is that what made any real difference was reducing stress, learning to relax a little bit and putting less pressure on myself to conceive NOW. All of this helped me have a more positive attitude and gain a bit of perspective.
Ultimately DH and I are lucky in that we don't seem to have any underlying fertility issues and age is still more or less on our side (I'm 33, he's 30). As others have said, it can take up to a year in those circumstances, so anything you and your DP can do to find what works for you without adding undue stress, go for it and try to reassure yourself that one way or another it will happen for you, even if it takes longer than you had hoped. And if you do have health concerns, don't be afraid to speak to your GP, even if it's just for reassurance. Good luck OP 