Is she pragnent or not. Of every month.

On 23.08 2016, I was doing some foreplay with my girlfriend. During foreplay my penis ejaculated some fluid (initial fluid) but not the fluid which comes after orgasm. I touched my penis and hence little bit of fluid comes on my finger. After that i inserted my finger in her vegina but not too much inside. Is there any possibility that she becomes pregnent from this. Her last period ended on 8 or 9th aug and this foreplay i did on 23.08.2016. Prior to this foreplay i did not do masterbation or sex that day and have washed my penis during bath so no possibility of sperms on my penis prior to pre ejaculation of fluid. We both are in very much stressed due to this. On 25.08.2016 she already took unwanted 72 at around 1:30 pm. Her period date is around 4 or 5 of every month.