No Im Spotting !?!?!

ill make this short So yesterday af was due . I was getting positives monday , and yesterday but this morning i used the restroom , and i seen pink stuff and i touched the tissue ad white stuff was on it as well , kinda pasty . it was creamy yesterday but i always get heavy cramps before af hit and the first day its here and all i have is lower back pain. ... yesterday cramps were here on and off but not this morning .. my question is can you experience IB ( implantation bleeding ) the day after a missed period???? i just tried to wipe so i can show you guys but i cant get anything on the tissue , so if i see some more i will add a the picture to this post ... can someone please give me an suggestion ...