I know this may seem a little crazy but... my boyfriend was killed a few weeks ago and I am beginning to feel that he may have left something here with me... we had sex 3 times the week he died... and two of those times I was on the last days of my period... and last Sunday I started cramping bad and having some light pink spotting... the spotting stopped but still cramping and my point is due today or tomorrow... I feel pregnant and I would love to be... I have taken several test some are + and some -... and I just need some insight...

So sorry about the loss of your boyfriend. If you read the results in the correct amount of time, the positives are almost always correct. Some fertility meds can effect the test or once in awhile you may get a faulty test (not very common however).
Did you get a very faint positive? Was the test read in the allotted time and not afterwards (this can result in an evaporation line that may look positive).
Sometimes, after a positive result, you may get a negative later if the pregnancy did not take.
And sometimes you will get a different result if you use a different brand of test as they can vary in their sensitivity.
To know for sure, check with your doctor about maybe having a blood test done. They will want to verify if you have already gotten some positive and some negative. Good luck!