Tww after ectopic

Marianne
my husband and I were told to use condoms because of my ectopic in June.  I had my last shot of methotrexate 2 months ago and last night we didn't use a condom.  Are we in any danger?  I am not fertil now I was last week.  My mucus is like water.  I keep telling myself that because we were not really trying and we were relaxed this is when it might happen.  Is it possible?