Yep me on 6th cycle now. Dh been away for a few days so bit worried ill have missed the boat again but have no idea when I ovulate so its pot luck really. Getting a bit frustrated now. I found taking charge of your fertility in a charity shop for a few quid so I'm half way through hoping it'll help.
Keep going, it took me & DH 10 months before I finally got my bfp. The last month I used zestica gel. Don't know if that was what finally did it, but who knows. I had almost given up, had an appointment at the hospital to check me out, but thankfully didn't need it. Good luck
Try using the Fertility Friend website, it can help you keep track of things.
6 months is by no means a long time, so don't put too much pressure on yourself. 90% of healthy couples will conceive within 1 year of starting TTC. Personally, we've been TTC for 2.5 years, so you've a long way to go before you catch us up