Her hymen is intact still too

Hey there, I need help! 

Three days ago my girlfriend and I were fooling around a bit, but we are both virgins (aka never had intercourse, and this was our first time doing ANYTHING like this) She had her period about 3 days before. She gave me a ha****b (she was fully clothed when she did) and I ejaculated. I didn't get any on my hands that I remember, but I maybe did a little when I cleaned her hands up, and cleaned where we were up with a napkin. I then wiped off my hands thoroughly with a napkin, and 5-15 mins later (time moves weird in times like this, so I'm not sure how much later) I fingered her. I didn't go inside her much, if it all with my fingers, only felt her clit. My hands did go near her vagina, to spread some of the wetness around, but didn't really go in much, if at all. Her hymen is intact still too. Well, after that we both got dressed, but now here comes the worrysome part.

Ever since the following morning she has been feeling almost EVERY symptom of pregnancy. Food tastes a little weird to her, she has cramps, strange bloating, cravings for salty foods, an increase in vaginal discharge, back pain, her boobs feel heavier to her, nausea, etc. Is it possible she could be pregnant? We are only 17/18 years old, and this would really destroy our lives right now. We don't believe in abortions, and believe in life at conception so using something like Plan B isn't an option we're willing to take. Does anyone have any hope for us?