Could I be pregnant?

Ok the thing is last nite i had sex with bf...we used a condom but in the middle of the whole act i asked him to change his condom...so he had pre-cum & then he rubbed on a lil of KY then put the condom on & with same hand more KY on top & i was 5 days after my period started & was my 4th day on birth control pills but skipped the day before, & im very irregular & just had cyst diagnosted by doctors on ovarie...i need to know my changes & an answer to know if i take the morning after pill that imstill on time...
Thankn u very much...

unicorn22