Hi,
On May 16th, my boyfriend and I used protection. It broke and he did ejaculate. I missed my birthcontrol about 3-4 days before, but I took it with my other pill the next night to double it up. I took a ECP within 48 hours. This was 2 weeks before my expected period. I am on Ortho-Tri Sprintec. I took the ECP on time. I am experience breast tenderness, cramps, lower back pain, and had a headache, which signals I am getting my period. I read that ECP can delay your period for a week, but will it delay my period on birth control due to the extra hormones?