Ttc help

Rebecca • I`m 32yrs old, I have a 11yr old and trying for baby #2
I'm confused about how implantation works. On July 13th I was suppose to get my period but instead of my normal heavy flow I got light pink spotting and the next day it was bright pinkish red but I didn't have no blood clots and it wasn't no heavy flow just came out when I wiped. HELP! What's happening?