Birth control question??? The ring

Long story as short as possible I started BC on cycle day cycle day 11 had sex on cycle day 11/12 pullout method. Then sex on cycle day 15 husband did not pull out. Was I covered? My cycles are 28-29days.
 We aren't opposed to a baby I just wanted to lighten/ control my periods this summer n not have the witch at every holiday gathering & vacation!
I've been feeling sick to my stomach in the evenings for the past couple days I think that could be the ring though. I took it out last night. My cervix was high and soft. Waiting to see if AF comes before I insert a new one next week.