Hello, Thanks for letting us know your health concern. Since her ovulation status is unpredictable owing to irregular periods, the best way out in the current scenario is to get the estimation of the serum beta-hCG titres now. If positive, you have to see a specialist for further management. If you do not wish to retain the pregnancy, preliminary investigations like blood counts, urinalysis are done and a trans-vaginal sonogram to locate the gestation sac and the age of the pregnancy and go for an induced medical abortion under surveillance. If negative, it is mostly due to the hormone imbalance which needs to be corrected. Hope this helps.