Getting frustrated

I had a miscarriage January 2018. Weve been trying again for 6 months and it's getting so frustrating. Lately my cycles range 27 to 41 days. 27 being the shortest 41 the longest. My periods are starting to be irregular. Im using expensive digital ovulation kits.. and still nothing, yet the first time I got pregnant was from baby dancing 1x. I also started temping this month.

I feel like everyone gets pregnant so easily.. everyone around me is pregnant or has kids and I'm so frustrated!!

Any advice??