Spotting 4 Days After End Of Cycle....??

The last day of my period was this past Sunday 3/11. Today after getting out of work i came home and noticed i had been spotting 😬😬 this has never happened to me in any of my cycles and I’m confused as to what this could mean... has this happened to anyone else and turned out to be a pregnancy?? It also came with very light cramps. Maybe implantation bleeding?? But I’m not sure if conception can happen so quickly after your cycle had ended. Helpppppp‼️‼️ #ttc 💗👶🏼