Hello
Welcome to Healthcaremagic
there is not any possibilities or
pregnancy becasue
1. You had unprotected sex on 2nd
dec it was risky but you had taken emergency pill.
2. On third day of periods, it was safe; so there was not any need to take pill, although you had taken it. So there is no need to have fear for pregnancy.
Next question about your cycle..
Emergency pills are not like candy as you can take any time. Its
hormonal pills and it affects your hormonal levels, so that it can do anything with your cycle.
So its advisable to use protection of condom only.
Now do not take any medicines, in any condition of periods. let it to normalized.
regards
Dr. Nikul Patel
Ayurveda Sexologist
Ahmedabad, India
lifecareayurveda@gmail.com