Symptoms before labor?

What symptoms are you having or had during labor? I am having lots of pelvic pressure, the need to constantly pee even if I just went, haven't really paid much attention to notice BH, and most of all IRRITATED over everything. And to top it off my 3 your old all of a sudden thinks its funny to pee her pants and to laugh when I discipline her. I'm 36 weeks and just want this baby out!