She’s Here & First Breastmilk Question

Pr

Our baby girl was born yesterday, Sep. 24th at 39 weeks weighing 9lbs 9oz. I’m in the hospital pumping for the third time, and there is some clumpy/tough, white stuff coming out. Has anyone experienced this? Any tips for getting milk to come out faster? They’re talking about giving my baby formula, and I really don’t want to.