It's hard when we want a baby and it takes a while. Tracking the cycle with day one of the period being day one of the cycle and then having sex on the 10th day of the cycle and then every other day thereafter for 10 days usually catches the egg eventually.
If it doesn't, as stated above, it is time to see the doctor to see if there is an issue. good luck
I am on the same position I have been trying to get pregnant for over 7 months and nothing yet the doctor said its normal for 1 year after year if you don't get pregnant then you have to go to the doctor to see what's going on I've been trying everything that I can I guess its not the right time yet when is the right time will come so don't be afraid if you have questions to go see your doctor and see what's going on