Could I be pregnant?

Okay so on Valentine’s Day, my period came .. very lightly tho bc I was on the pill. I admit I wasn’t taking the pill like I was supposed to, but I was taking it and plus my period came so I assumed I couldn’t get pregnant. Well he nutted in me that day and now I haven’t had my period for March. (My period was on for 3 weeks when I was on the pill, not spotting but a regular cycle). Is there a chance I could be pregnant?

Another thing, last week I fainted at work and was rushed to the hospital. I’m not sure if they did a pregnancy test on me but everything else was okay with my blood and urine.

I know this is a silly question but my boyfriend questioned me about my cycle today and he just got me thinking.. even though I doubt I’m pregnant.