14 years ago I had a tubal ligation. I'm almost 43 and had to have my left ovary and tube removed due to an ectopic pregnancy on 2-14-13. I have had normal periods every since until now. I am at lease a week late and I have been experiencing cramps, lower back pain, bloating, dizziness when I stand up and fatigue (for 7 days). I have taken 3 pregnancy tests in the last 4 days. Could I be pregnant, have an ectopic pregnancy on the other side or is it normal to miss periods after?