DH and I ttc for 7 months, I am not sure what finally worked but somthing did, so here is what we did!
Firstly I charted my cycle, interesting, as timing am have been an issue...
I did do a lot of reading though and starting taking a number of vitamins
This is what I took and way
Vitamin D - I found out I was low in this and that it may effect fatility
Evening Primrose Oil - To lumb everything up down there
Asparagus Root - Increases blood flow to your uterus, its not recommended to take during PG so if you do take this stop as soon as you get a positive test result.

I also mad DH take Pak Ginseng its meant to help the swimmers be stronger and faster

So I am not sure what it was that helped in the end but there where some changes when I was on them, I had a lot more CM and it ended up working.

Give it a go you have nothing to loose, to be honest I thought there was no way I could concive the month we did, I was away and only got home on the day of O, we had one shot...... ended up being the money shot!

Wishing you all the best