I had a d and c and after three weeks I haf sex and the condom slip I ran like hell within 30 minutes I took n.c what I started to read the leaflet I realized that one side effect could be an etopic pregnancy I am worried my d and c was strange to have happened I have always had successful pregnancy twice this is all very stressful I have diarrhea and headache very tired and sleepy when I drank the pill I had already been fasting and continued to do so by only eating toast bread dont know when I should get my period being said it would change this is the fifth day of taking n.c. How often does etopic pregnancy occur with next choice?