Ttc for 4months but it has been hard since my cycles vary each month what can help me conceive faster or know my fertile and ovulation days?

Use an OPK kit: If you have fairly regular cycles use an ovulation predictor kit (opk) - test between 10 am and noon, starting on day 10 of your cycle. The first morning urine is not accurate. Try the ovuquick brand (look online, get the 9 stick pack) if a drugstore test doesn't work for you. The day of a positive test and the next 2 days are your most fertile days. If you are very irregular, see a rei specialist.