let me explain the situation and hopefully someone can tell me the chances

We're both still virgins. about 6 days ago, she gave me a ha****b, and after I finished, we both wiped our hands with Kleenex and about 3-5 minutes later, I fingered her for about 3 minutes. Is there a chance some semen residue stayed on my fingers? After I fingered her, she put her own finger in there for a second. 

Her period was due about 1-2 days after that, but it never came. She said she was irregular sometimes since she is a bit on the petite side. BUT shes experiencing some things that are similar to early signs of pregnancy. Cramps, nausea, and she even said her breasts feel bigger. But she also said she usually gets nausea and cramps before her period anyway