Have you been trying long?
At first I did the normal count the days stuff.
Then I invested in some of those sticks that tell you when youre ovulating when you pee on them. They work well.
I unfortunately had stage 2 endometreosis and needed surgery to clear it out before I got prego.
I was trying for about a year so I went to the gyno who sent me to a specialist.
After checking things out thats what was holding me back.
If youre just starting out I say just do the deed... if its been a while try those sticks... if its been a really long time talk to your doctor.