During my fertile period I had sex and at first the guy wasn't wearing a condom but then I made him put one on. My period is 9 days late, but I have taken 2 pregnancy tests and they were negative. My breasts feel tender, my face is breaking out a little and I thought I felt cramps but they weren't as intense or long lasting as my normal pms cramps. All of these symptoms, minus the difference of my cramps, are normal for me before my period.

I also thought I should mention that I'm under a lot of stress at the moment: I'm going through a break-up, I moved back in with my parents and in two days I will be moving to an apartment 3 hours away to start nursing school. Once before in high school I skipped a month or two of my period in a high stress time so I thought that might be affecting it. However I wasn't sexually active then so it wasn't something I really worried about.

Could I be pregnant? Should I take another pregnancy test?