Suggestions please?!

Theresa
This is month 12 of TTC. I am 28 and healthy, with normal cycles. We have been BDing at least every other day during the fertile window. No luck. Praying it will happen soon. Trying so hard to be optimistic! Does anyone have any suggestions/success stories? Vitex? Preseed? BDing every other day the entire month? What has really worked for you??