Conception questions

Kristen • Wife. Registered Nurse. Jesus follower that’s trying to trust in God`s plan in all of it!
Just curious as this is our fourth month TTC... On which days of your cycle and how many did you BD when you conceived? I'm so confused about all of it. My Doctor is great but she was no help with my many questions. I know every other day when you're fertile. But are we supposed to have sex on the day of ovulation? And how do you even know when you are?