Dear Priscilla - periods are irregular when they start, but if it is irregular every month, please consult a specialist or a registered doctor soon. Read here also: https://lovematters.in/hi/resource/menstrual-cycle https://lovematters.in/hi/our-bodies/my-periods-are-irregular-what-should-i-do Use the link if you want to calculate your ovulation to the Ovulation Calendar given below. That will help you . You can even test/check the calendar by putting older dates - confirm your cycle of last two months - since now you know when your periods came - and now chart ahead. You can check a Home test 10 days after the last time you had sex on any of the fertile day. Best of luck https://lovematters.in/en/our-bodies/ovulation-calendar-how-to-calculate-ovulation https://lovematters.in/hi/pregnancy/home-pregnancy-tests-dos-and-donts If you would like to join in on a further discussion on this topic, join our discussion board, "Just Ask” https://lovematters.in/en/forum