Is it implatation bleeding?

Patient: I got my period on Dec. 31 and it lasted about 5 days. On January 9 and 10 I was seeing pinkish discharge. I’m trying to get pregnant with my 2nd baby. It it at all possible that the pinkish discharge can be implantation bleeding? It has never happened to me before and I have read that some women get pregnant right after menstration.