Period in 5 days

My period is in 5 days, today was one of my most likely days for implantation even tho i havent spotted. I never did with my first tho. But a few days so I started cramping and today my boobs are so sore! Idk if it’s just because my period is coming up or what’s. No symptoms besides sore boobs and cramping off and on. Guess I will be testing tomorrow!