Does anyone have any knowledge if you have a normal period but don't ovulate?

I am just thinking of reasons why I (a healthy 32 year old with a seemingly normal period) and my husband (a seemingly healthy 29 year old) are having a hard tine ttc. I did get pregnant in july but lost it in a few weeks, I waited a couple months to ttc again on doctors orders. Now we are back at it but no luck yet. Mind you for about a year prior we werent necessarily trying but I wasn't on bc pills and we werent "being careful". Its only been a few months we have really been trying (we being me w/ ovul6 sticks, temperature, now my cervical mucus, prenatal vitamins and I just got pre seed because I feel like I lack cm). Im just frustrated. So with that said I was reading women can have a period and not ovulate. Im just wondering what are common reasons why two people that have sex during your fertile window dont get pregnant. Sometimes I just feel like just saying im not gonna have one so im not disappointed again.