Hello girls. I gave birth on April 9th, and by the beginning of May, b…

Hello girls. I gave birth on April 9th, and by the beginning of May, bloody discharge stopped completely. It was just barely there. But today I noticed blood, the color like my period. But I still have milk, I'm not breastfeeding, I'm pumping. Could it be my period? My gynecologist appointment is only on the 17th.