I was pleasuring myself, I didn't wash my hands and I fingered her

Ive a similar situation. My gf gave me a blowjob and ha****b. I came on her hands. I wiped it off with my hanky and she also wiped her hands with a napkin. then we stopped for about 10-15 minutes before i started rubbing her clit with my right hand which was dry at that time. All this was over her pyjamas. She was wet down there. Could it be like the dry semen on my hand somehow got inside her and that too through the pyjamas due to her being wet down there? She says she went to the washroom after 3 hours and she might have touched herself Down there. She has no symptoms of PMS or pregnancy like cramps,bloated belly,food cravings or aversions,gassiness, backaches. She is now 7 days late. She was supposed to get her menses a week ago. Please help. We're both freaking out and she's too scared to take the pregnancy test.