knitter - I'm impressed at three times a day for twenty days!!!
My advice to waterloo is to consider charting, as bethy said. OPKs will give you an idea of when ovulation might happen (but I have to tell you there are lots of people who think they're a total waste of time), but charting will familiarise yourself with your body and cycles so you know exactly when to start using ovulation tests, and you will also have an idea (if you don't get a +'ve) of when to SWI anyway ... and charting will confirm for you whether you did in fact ovulate in that month. If you've been trying for a year and seeking help, it's also useful to be able to take charts with you to the docs. To give you an idea, here are my charts on Fertility Friend. I use a Clearblue Fertility Monitor (which I recommend) instead of sticks, and you can see where the peaks (+'ves) correlate with temperature shifts. It's still too early to see if I did ovulate this month.
The other thing I'd say is its not all you. Your DH needs to do things to make sure his sperm is OK and it might be worth getting him to start taking vitamins for men. (My Dh was advised by a nutritionist to take these). Too much booze has had a proven effect on the quality of male sperm. Both of you, if you drink too much (as I certainly did) should consider 'sort-of' stopping or totally stopping. I no longer drink at home but will have a drink (if I am in first stage of my cycle) with friends out for meals etc which amounts to maybe a couple of glasses 1-2 a month.
Also with male sperm - knitters impressive approach could be derimental if your DH has a low sperm count. Unless you KNOW his sperm is OK, avoid being too intenisve until you've had more chat with a doctor. But it is known now that regular sex can improve male fertility so every second day is not a bad thing, or even once a day. However, if as a couple you are anything like my DH and I, even every 2nd day can get hard going with work and stress. DH is therefore under instruction to - ahem - masturbate on occasions we can't do it. That way his sperm is constantly replenishing itself and we have 'fresh' sperm on the days that really count.
(My DH had less than perfect sperm results so this is why I'm telling you this side of things).
Finally factor in TIME to everything you do - I'm nearly 40 so time is a BIG deal to me. It takes about 3 months for male sperm to mature from start to end, so if your DH offers to stop drinking/smoking (hypothetically) in one month's time, you'll only reap the benefits in four months time. It also takes several months before good diet and nutritional supplements kick in too - and of course, months of NHS waiting time for tests and appointments. Because of what I've been through, I suggest you really line up your ducks and do loads so you can get going as quickly as possible.
Very happy to talk through more of this with you if you want. x