Scared for a BFP😞

I woke up this morning with incredibly sore and swollen boobs. I am only about 8dpo but I have felt so yuck...I know not an indicator or pregnancy as it could be from a number of things...but I am absolutely terrified to get a BFP within the next couple days. I have went from excited to start trying again to just completely hating the thought of starting over...Now I am just terrified that I will get my heart shattered.. I want a baby soooo bad, but now I'm entering into the stage where I will begin testing and I'm sooo scared. Losing another would kill me.