My husband and I have a very stable relationship but were not ready for children yet. However, we had much foreplay today and after making him orgasm, he could have possibly gotten sperm on his hands and he fingered my afterward. Is pregnancy possible from this or am I just being paranoid?
Yes chances are there you can get pregnant. Sperm can cause pregnancy if introduced into female genitalia by whatever means. Try emergency contraceptive pill within 72 hrs of this event. And better go for some contraceptive to prevent pregnancy from next time.