PAINFUL right breast after latching

El
I get this painful stabbing pain when my daughter latches onto my right breast it eases after a bit (10 seconds ) but this never happens with the left? We're 9 weeks post birth so she's learnt to patch pretty well
 Any idea on how to get rid of it? I can't feel any bumps and I don't think I have mastitis. I'm so scared to breastfeed with it but I still do so my supply doesn't go down