Hacked

Ok, I don't know how, but obviously this blog has been hacked.  Advertisements keep popping up even though I am signed in on this computer -if I was going to post from another computer I get signed out of this one, so whoever it is obviously isn't signing me out.  I keep coming on here to do drafts that will all go up on the following Monday and I am confused to how it is happening!!!  I have now disabled the email posting ability because maybe it is happening that way.