So I've been really worried lately because I've been having a lot of the signs of pregnancy, nausea, heightened sense of smell (which started recently and some smells make me more nauseous), breast tenderness, more frequent urination than usual for me, headaches, moodiness, and what feels like menstrual cramping but happens every day for the past 2 weeks. I've taken three pregnancy tests including one this morning and they've all come back negative. The main reason I'm so worried is because I haven't been consistent at all with taking my birth control. I don't remember if I missed any pills last month but I'm sure I did, and just this month I missed a day, took two the next day, then missed the day after that, and then took two the next day. And even if I remember to take them, it's never at the same time. I also took Plan B the night that I took the last set of two pills after missing them. I was thinking the side effects could be from the Plan B, but the cramps started before I took it, and I called my Gyno and talked to one of the nurses and she said that since it's been a week since I took it, I shouldn't still be experiencing symptoms from it. She also said missing that many pills can cause ovulation... so I'm kind of freaking out. My period is due in a week, but last month I didn't get anything till the last day and it was only spotting. I just don't know why I'm feeling this way if I'm not pregnant. Any advice?