12dpo frustrated...

Angela

hey all first time posting but anyways I am 12dpo and AF is die the 11th and have been cramping on and off since like 3dpo I had spotting on O day and increased cm... today I had slightly more cramping so I put in a tampon thinking AF was beginning but when I took it out hours later there was only yellowish mucus sorry tmi...with a few specks of blood and nothing since in my pad or when I wipe...my mind is going crazy any similar experiences?