How long have people being ttc

Katharine
I have been trying to conceive for around 8 months now. Most months we have bd at the time of ovulation that the app says but still nothing... My fiancé thinks there is something wrong but I just don't know. We don't bd ever other day as that's just too much but in the most important days we make sure we bd during that window.. I'm 31 and my fiancé is 35. Just wondering what to do x