Thoughts

Well I went to see my ob on Tuesday and got checked been having alot of lower back pain and cramping and alot of pressure. Dr checked I'm 1 cm dilated at 31 weeks. This is my first and dr said to just keep doing my normal activities. And if it gets worse go to the hospital. Well my back pain is still the same as before same with my cramping and the pressure on differents is when I lay down sometimes even sitting I get this hard feeling on my stomach and it stays for a good 1-3 mins. I go to the hospital on Friday for a non stress test, and gonna let them know but would you say this is all signs thay baby could be coming before my due date on Jan 2nd?