Hi I Am Newly Married. We Started Having Sex From

Hi I am newly married. We started having sex from 17th Dec and the frequency is several times a day. We had taken precautions every time and I had ipill on 22nd Dec. My last period was on 1st Dec and I used to get my period before 5days of last period date. But I didn't get my period yet. So is there any chances of pregency or its due to any other reason? Kindly guide. Thank you, Roshanaara