Exhausted when on period and feeding

Just Me • Have a 4 year old daughter and a Newborn GLOW baby girl born 22/04/15..so in love 💕
Anyone else feel exhausted when feeding while on period? I feel drained. She is 27 weeks ebf  and feeds every 2-3 hours day and night. I'm tired normally anyway with baby and hyper 4 year old but when on period I'm drained