Apparently it usually stops around 6 months PP. Don't think there's anything we can do to prevent it as its hormonal
I’m having the same issue. My Little one is 15weeks and I’m leaving a trail of hair wherever I go! I have to empty my hair brush when I’m brushing it as so much is coming out.
I’ve only just started having this loads comes out and I now have bad hair loss around the front of my hairline it’s gone all really short like all snapped off right close to my scalp :(