... my missed shot, I began to experience irritability, gas, bloating, cramps, nausea, gas, burping, and lower back pain. I have taken a pregnancy test since I am sexually active with my boyfriend. We do not use protection and he has ejaculated in me since I received the shot in June of 2016. Are these side effects from missing my shot or possible pregnancy? Is anyone else experiencing these symptoms? It has been over a week with these symptoms now. I called my doctor and she is requiring that I take two pregnancy tests before receiving the shot again. I took an at home pregnancy test for the second time and it looked negative but there was a very faint second line, which could have been the evaporation line.