Do I need to worry ⁉️

Fáti

So I had "sex" for the first time. I was over at my boyfriend's house AND things escalated quickly. Head turned in to just the tip. It was not sex per say but literally just the tip. However he did cum but NOT IN ME.

I am awfully concern because 15 minutes before he ejaculated while I jerked him off. Is it possible for me to get pregnant from pre cum?

Take in mind it was a day before my "fertile window" and no condom was involved. Nonetheless, I took plan b with in 8 hours after the sexual encounter.