unprotected sex?!

Louise
Ok so i was enjoying the morning with my hubby and we had unprotected sex. Im a bit worry but am happy to go to the chemist to buy the pill - however - we had sex after the unprotected sex this time with a condom. What im confused about is whether if we had sex after unprotected sex does it then push semen further into the vagina? Will this raise risks of pregnancy or the pill not working? Help!