Brooke's in Labor

Hi guys....Brooke's been in labor all day. She's not due until Sunday, but while sleeping last night, I awoke to hear her "digging" in her bed. I got up and sat with her for a while, took her temp and calmed her down. Her temp was 98.4. I knew then she wasn't going to make it until Sunday. Anyway, another indicator was her refusing her food this morning and she's been panting all day. I wonder how much longer it's gonna go on? I feel so bad for her. She can't get comfortable or anything. Patiently waiting.......