I Am A Virgin.. On Sunday Afternoon .. My Bf

I am a virgin.. on sunday afternoon .. my bf ejaculated his sperm keeping his part on mine.. and today he tried to put it inside me and his pre cum was on my part..can i get pregnant? Should i have unwanted 72 now? And will pill give any side effect in future?
Can my blood test report or anyther test will show that i had contraceptive pill?