Could she have become pregnant?

Here's what happened. My girlfriend and I were fooling around (we were NOT having intercourse) and I felt like I was about to ejaculate so I moved back . I did not ejaculate. I kept feeling the head of my penis just to make sure nothing came out (possible pre-cum), and it was very dry and I did not feel anything. I ejaculated four times the day before so I know that lessens the likely hood of pre-cum. After I felt my finger (which I am very sure it was dry because I felt it with my other finger, then I kept rubbing my fingers together to feel if there is anything), I touched the sheets and then I fingered her (not right after, there was a couple of minutes inbetween, keep in my mind my fingers were absolutely dry). Is there any possible chance that she might become pregnant? She also has JUST gotten off her period, literally that same day.

She IS on birth control and have been taking her pills at the same time every single day.

Please let me know as I am very stressed.

Thank you in advance.