So confused and need serious help.

Alright guys, need some help here. Recently, I had a pretty bad preg. Scare. I had some spotting two or so weeks before my period. Was a little worried that it was implantation. (Note; my and my boyfriend are very very careful. We always use protection, we always pull out, and we always do the water test. But one time he had stuck it in for like ten seconds with out a condom, but there were no strokes or anything, so we didn't really worry about it.) I took a text that day and it said negative. Then, my period was about 6 days late, so we took two more tests that both said negative. Then, what I thought was my period started a couple days later and we thought we were in the clear. It was very heavy the first two days and then got semi light the last days, but It did last the full 7 days. I was having very intense cramps during. Now, I'm not longer bleeding and Iv been experiencing slight nausea, and a constant headache. I have also been having slight back pain/ace, and slight stomach cramps.

I recently found a tick on my head(the second day of my period) and it was a deer tick. So I have done to the doctor to be checked for lymes. My blood work won't be back till early next week. I'm not sure what to make of the way I have been feeling. I'm not sure if I should affiliate it with me potentially being sick, or if I should go back to maybe I'm pregnant, (even though I had some kind of period). I know it's possible to have a period while pregnant! Also, the head aces and fatigue have been going on before I found the tick. So I don't want to assume that has anything to do with it.

Please, I just need opinions. I'm not sure if something else is going on that I should discuss with a doctor, or maybe I have been pregnant this whole time! I'm 19 and about to go off to college and I'm terrified of what's going on with me! SOS.