TTC with PCSO

I need help girls! I have been off my pill for 3 and a bit years and been trying since and I have irregular periods and also had a chemical pregnancy in September 2017, I had hope and then everything went wrong 😩 I take folic acid but I haven’t ovulated since September 2017 I test every other day but I want to try my best to do it naturally and try everything before taking tablets. It’s taking the fun out of sex now and I feel like I’m getting no where 😩