I had the essure procedure on 02/28/2014, and have been having regular periods since. I did not use another form of birth control for 3 months post essure procedure, as my husband was away on military duty and /returned home a couple weeks before my 3 month timeframe. The first day of my last menstraul cycle was 05/27/14. I am now 4 days late and i took a home pregnancy test last night and it was negative. I have not had the HSG performed either so i am not sure if my tubes are fully blocked. Is it possible i could still be pregnant even though the home pregnancy test was negative.