unsafe sex with implant

Reyna
So I got the arm implant on the 11 of this month & my doctor told me to wait two weeks before letting him ejaculate inside me. But this Saturday my bf and I want to try it this weekend . My question is will I get pregnant if I don't wait exactly 14 days because technically it would be 12 days 
Ps I got my implant 2 days after my period