Hello, Thanks for writing to us. Period inconsistency may be due to hormonal imbalance, mental stress, PCOD, over weight, high prolactin, pelvic infection etc. Intake of MTP tablet should be limited to 1-2 times in whole reproductive life to avoid ill-health effect. Repeated intake is NOT recommended as it may create future problem in conceiving. I suggest to use regular combined OCP if you don t want child for next one year. Medical abortion at home without doctor s prescription and guidance is NOT recommended. For proper dosing and direction of using those pills, you need to consult with local doctor, which will be helpful also in emergency. It can be done up to 9 wk safely by using abortion pills (Tab Misoprostol and Tab Mifepristone, present in MTP Kit) under observation or guidance of gynecologist as it may cause unnecessary excessive vaginal bleeding, abdominal pain etc and may require surgical method (D & C) to complete abortion. Don t take those pills by yourself. Practice safe sex and use emergency pill or condom to avoid unwanted pregnancy in future. Good luck.