Any tips ladies. PLEASE!!!!!$

Sunshine☀️☀️ • Married. 24 yr old young woman. SAHM. To my wonderful 3 yr old son. Ttc baby #2
Are there any tips on trying to conceive with an irregular cycle. I thought I was pregnant this month bc I was 6 days late but low and behold she made her arrival. I was so hurt I wanted to cry. Normally cycle days are 35 but this time it was 40. How can I increase my chances of getting pregnant with an irregular period? I'm tired and starting to get discouraged.