I Had An Abortion On D 11th Of March So

I had an abortion on d 11th of march so on the 1st,4th and 8th of April I had an unprotected sex but my bf just release on me 2 twince and today is 13th of April and I have not see my period and I have also done urine test its negative ....pls enlight me doctor what is wrong does it mean am pregnant and what drugs can I take to quite it plz reply me....thanks