I have unexplained subfertility, so took 3 years to conceive my little boy and this current pregnancy took about 14 months after a mmc.
When trying for this current baby, I got a clearblue fertility monitor and used it for 5 months (stopped after that, as it says contact a doctor if you're not pregnant in 6 months, and for some reason, I just didn't want to pass the 6 months on it!) and although I didn't conceive in that time, I did learn that I ovulate much earlier than I thought, so when I stopped using the monitor I started ttc much earlier in my cycle than before (I have a 26 day cycle so was iniitally aiming at ovulation around day 13, but actually it was day 10/11 for me, and this current one was conceived on day 9!)
I also noted that when I was pregnant with my boy and the mmc, I conceived on both occasions as a result of some afternoon loving..., so I scheduled a few lunchtime nookie sessions as I figured that might work better with my cycle, and it worked (OH was happy with this approach too :-)
Ultimately though, all anyone tells you is to relax, don't count days or times and enjoy yourself and it will happen (that may be true, but when you've struggled with infertility, all you want to do is thump them! so I think having an idea of when you're ovulating and then just roughly timing nookie to coincide is a good way forward - well, it worked for me :-)