I think we might have to give the ovulation kits a go.............although I'm not sure even they will help. We have always tried the random method of having sex every 2-3 days method, but one month we had sex every single day and I still didn't get pregnant. We've also done it every other day for a couple of months and no luck.
I know there has to be a balance between doing it too much (and hubbies little wrigglers being worn out!) and not doing it enough (and so missing ovulation), but I though sperm 'hung around' for 2-3 days, so find it hard to understand how I never get pregnant.
I'm not sure what a HyCoSy scan is? But I have had a HSG (where they check if your tubes are blocked) and just a regular scan..............the results of all of which were fine. They've also done blood tests, tested my husbands sperm etc etc.....all of which are fine.
Just wish it would happen as there is no medical reason why it shouldn't! It's nice to hear stories of other people who have taken ages to conceive but then get there eventually!