Does anyone else have 31 day cycle and trying for their first baby?

Alexa • Married👩‍❤️‍👨 In our TTC journey. Praying for a little rainbow of our own👶🏼🌈🙏🏼

I currently have an average of a 31 day cycle and trying for my first baby. It’s confusing at times since everything online is based off of the 28 day cycle which I am not..so prediction ovulation if tough.