I am on combined hormonal pill ovral g for 5 months. I missed two pills in December but took it as soon as possible. I have a cycle of 34 days. I had breakthrough bleeding on 23 Rd December 2018. My last period was on 6 th December ,2018. It was very light. I had sex on 31st December. I stopped taking pills on2 nd January 2019. But I still haven't gotten a period. I took a home pregnancy test and it was negative. Do I have a chance of getting pregnant?