Signs of Farrowing???

[EEBLACKCOPPERMARAN]

I am new to pigs and I have a pig ( a kune kune) that I think is going to have piglets. This is going to be her first time giving birth and she is already bagging up. How long before birthing do they bag up??



Thanks!!

 

[EEBLACKCOPPERMARAN]

Also it looks like her belly is (almost) dragging on the ground.