Spotting after periods over. ?

Period ended about a day and a half ago it was very light the last two days I came off for about 2 days yesterday in today and Monday also but tonight I went to use the bath room and there's a spot of pink blood no red at all. I put In a tampin for about a minute in when I pulled it out the tip had a bit of pink blood is there anything wrong with me ? It's two early for pregnacy. Although I had sex a few times while on and before my cycle