Could I be pregnant?

I was on birth control (the pill) for two years and half, however, I stopped taking the pill last month (I finished the 28 day pills) I was supposed to get my period on the 15th of this month. I haven’t used any other kind of protection.... so Could I be pregnant? My periods were always on point and exact. Even tho I’m three days late is it too early to take a pregnancy test?