2 months is very less time. U need to try at least for 9 months. It's not a problem to conceive with irregular periods. But yes u can consult a gyn for it

Irregular periods esp if they come at an increased interval like 40 days or more is a sign of anovulation ie you may not be making eggs appropriately each cycle. Along with that with irregular periods it is difficult to know your exact fertile period as ovulation day can be very erratic. You should see an infertility specialist and get blood tests and ultrasound done to rule out pcod or any other hormonal disorder

If period is irregular, ovulation chances are less.so trace out cause for irregular menses like thyroid disorder, pcos,over weight, stress n get treated.