help pretty please!!!!

so, i’ve been on birth control pills for 7 - 8 months. i got a really bad kidney infection and had to take antibiotics february 3rd - february 7th. i continued taking my birth control at perfect time. i had a regular 4 day period on my sugar pill week february 11th - february 14th. i had sex without a condom february 22nd. ( i was still taking my birth control perfectly ). my period is due march 11th - march 14th. do you think i was protected on my birth control the day we had sex without a condom ( february 22nd )?????