Bleeding after sex 7 weeks postpartum.

Ell • Married to the love of my life | baby boy 5-4-19| mom to an angel baby feburary 20th, 2018

I had a c section and got cleared by my doctor for sex. I've already had my postpartum period about a week ago but the past 2 times I've had sex I've bleed. Not like a little bit but it actually looks like I'm starting my period again. Is this normal? Should I be concerned? It doesnt last for more than a few hours.