I Had Unprotected Sex Wid My G.f....i Inserted My Penis

I had unprotected sex wid my g.f....i inserted my penis into her and stroked for abt 5 mins and thn pulled out....and thn she gave a handjob and i fully ejaculated on her chest.....m just afraid of the precum tht might cause any prblm while stroking....so she took unwanted 72 aftr 5-6 hours........today is the 4th day...and she is having headache and stomachpain.......not able to concentrate on anything.....
..can u plss tell me if there is any chances of pregnancy....plsss rply fast...plsss