Is it possible?

Something always happens when I got to get my Bc pill at the pharmacy or I end up missing a day or two and double up. I have been told for a while becoming pregnant is kinda hard for me but not impossible. I take the Bc for my period cramps. It’s hormonal. I recently missed two days and had very dark spotting if that’s even possible and for the past four days I’ve been nauseous and have puked twice. Is it possible I’m pregnant?