Thanks for the query.
I understand your concern.
If your girlfriend was around the period of ovulation at the time of fingering and if you had good number of live motile spermatozoa on your finger at that time, there is some possibility for pregnancy.
If your girlfriend misses her expected of periods, let her go for urine pregnancy test once to rule out the possibility of pregnancy.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.