EARLY LABOR!?

Sara

I am currently 16 weeks pregnant with twins (17 weeks on Sunday) My first son is now 10 months old and was born premature at 31+3 weeks I have been experiencing really bad lower back pain, and pelvic pain when I get the pelvic pain I can hardly walk which makes me want to cry 😭 I just want to know if anyone thinks this could be signs of early labor or if it's normal? I don't want to go to the hospital if I don't have to