I'm on my first month of Tri Sprintec and I'm a Tuesday starter since I took it on the first day of my period! However I had unprotected sex on the third week. And I had unprotected sex again today and I'm on my 4 white pill. I also have not gotten my period yet. I don't know if I might be pregnant. I also dnt know if it increase my risk since I forgot to take my pill at the usual time, however it was within 24 hours not a day.