Such a difficult question. We are so much more than statistics and though we compare ourselves to others' experiences, it's so individual.
I tried for 7 cycles with 3 different KDs. Each time we had a new KD, we had to do all the SDE screening and get new contracts. For 4 of the cycles, I used acupuncture, had an RE, took Clomid, estrogen, trigger shot, and progesterone. I did between 2 and 4 inseminations, well timed, each cycle. I have no known fertility issues and thought that with the interventions, I would have a better chance of conceiving. No such luck.
What worked for me? I left my marriage. My ex was less and less interested in starting a family with me and I became secure trying to do it myself. I started eating a Real Food diet, cut out all soy, and dumped my doctors.
My first time trying again (with a new DP btw), I charted, peed on opks, and had a few great orgasms each time we inseminated. Three well timed insems, every other day, the last on the day of ovulation. I kept my hips up for 30 minutes after each one and watched Murder She Wrote.
Seriously? There is no rhyme or reason to ttc. It can be heartbreaking and full of hope. Often both at the same time. Each person has such a different experience and as hard as each BFN was, it wasn't the right time for me, even though I wanted it to be more than anything.
Best of luck to you and everyone ttc. May your time be short. xo