Could i be pregnant?

So i’ve taken 2 pregnancy tests, both were taken first thing in the morning. My period is 8 days late, i took the test yesterday and today. My boyfriend and I had unprotected sex however he did not cum in me at all and i believe if he had precum, it was dry before he he even went in. I am under a lot of stress right now but after taking those 2 tests and both beingg negative could I still be pregnant?