Hallow Dear, If your periods were not normal for continuous two months (I believe they were scanty), and you are suspecting yourself to be pregnant, you should get your pregnancy status confirmed. In fact birth control pills should not be started unless pregnancy is ruled out. Please get pregnancy test done on the overnight first morning urine sample. Along with get ultrasonography also done. If your pregnancy test reveals no pregnancy , no worries. However if the pregnancy test is positive and the ultrasonography shows empty uterus, you have to consider the possibility of pregnancy somewhere outside the uterine cavity (ectopic pregnancy). Since your previous menses are likely to be scanty and had continuous pain in the lower abdomen, ectopic pregnancy possibility should be kept in mind. To diagnose an ectopic pregnancy, one has to be ectopic minded. If it turns out to be ectopic pregnancy, you will have to get admitted in hospital. It is an haemorrhagic emergency when it ruptures. Please report to your Obstetrician. If the pregnancy test is positive and ultrasonography shows gestational sac in the uterine cavity, you are having a normal intrauterine pregnancy. If it is unwanted pregnancy, you may opt for termination of pregnancy by medicines. It is safe and effective method for terminating pregnancies upto 9 weeks of gestation. If pregnancy test is negative and the uterus is empty, your stress is over since there is no pregnancy. In that case, cramps in your abdomen could be attributed to increased acidity due to birth control pills. Proton pump inhibitor antacids like Pantoprazole will help you in this. If there is any type of pregnancy, please discontinue oral contraceptive pills till the further decision is executed by your Obstetrician. I hope this helps you for further management. Dr. Nishikant