Could I Be Pregnant When My Period Is Late After Taking Two Postinor-2 Tablets Post Intercourse?

I used the two tablets of postinor 2 at the same time on 03/02/2023 which was the day I had sex. My ovulation was supposed to be on 05/02/2023. My last period was between 22/01/2023 & 25/01/2023. From my calculation, my period was supposed to come on 18/02/2023 which is day 28 of my cycle. However, the period is late, is there a chance I might be pregnant?