The child he didn’t know

(Y/n) and Dean were together for a long time (y/n) knew Dean was a hunter and she believed him they were together for 10 years until dean just ended things and left no explanations no why. 2 months later (y/n) finds out she’s pregnant and Dean changed his numbers 3 years later and Dean sees (y/n) with a 3 year old boy that looks exactly like him