Ugh your so lucky your at that stage lol for my first i ran up and down the stairs in my house and would jump down from the second step and kept doin that i did squats also to help and walked a lot lol i was really trying to have her the next day which was my due date but she came two days later
Squats helps bring baby down and get them more engaged but they also can help do that during labor... i did squats for 2 days (only 10-15 per day) and it had my legs hurting so bad that I quit because if I did go into labor I didn't want my legs to be that sore! Lol so I'd recommend getting a birthing ball. You should be able to get one at walmart for about $5! Plus more people have had success with a birthing ball than by song squats, and with less pain/soreness!
I heard of squats being good during labor but not to jump start it.
I would say however many you can do without hurting yourself