Early pg test! please help me out with some advice

Any advice please ladies, I am due af on 25th, I couldn't resist and took a clear blue early detection pg test this morning, it came back negative! For the last few days I have had reallllly sore boobs! They're sore to the touch all over. However this is the only symptom I had really had apart from a few small cramps, nothing major! Any thoughts on this? Hoping for a bfp 💖 I have seen on glow that the best pg test to use is the first response when testing early? Any advice it tips would be great. Baby dust to you all ✨✨✨