Trying to get pregnant!

My fiancé and I have been trying to get pregnant for about 4 months now and no sign of pregnancy at all. I’ve been using this app and I feel like it’s not helping with when my ovulation really is. Because we have done it on the days that it says I’m ovulating and nothing. We have ovulation test so hopefully they will help us. I’ve had miscarriages in the past with my ex and I just feel like I can’t get pregnant. We have been trying and nothing ik its sad to say but not even a miscarriage. To show that I’m getting pregnant. It’s so frustrating, I’ve had test done and everything comes up fine nothing wrong. Everyone is like when the time is right it will happen but I’m so terrified that I can’t have kids. If everyone doesn’t mind to keep us in your prayers and send all the baby dust you can our way! Thank you so much!

My periods are irregular so it’s sometimes really hard to determine what days are my ovulation days. Also if anyone has and/or information about pcos would you please share some stuff about it. I believe I might have it thank you so much again!!