CONCERNED

I’ve been having lower back pain but last night i realized it was more pressure than pain, like uncomfortable (and i’m not constipated) Last night i also was having sharp shooting pains from my abdomen to my vagina, which i just think was round ligament pain. Today i went to my chiropractor & i noticed my stomach was kind of hard, but it didn’t hurt. then as i was laying during my massage & getting adjusted i noticed my stomach was hard & i do have some pressure. to add, this morning after i went pee my boyfriend rolled over and just put his hand on my inner thigh and mentioned how my leg was wet.. but not sticky like it would’ve been like it was discharge. i mentioned this to my sister she said i can be leaking amniotic fluid, and or the tightening of the stomach can be contractions, but i don’t feel pain just pressure. the baby is also kicking. Could i be having preterm labor? should i wait for the doctor to call me back (ive been waiting over an hour after leaving a message) or should i just call into work & go to the ER? Or am i just stressing over nothing. I am 29 weeks today.