First Urine Was Rust Tinged This Morning Then Clear. Went

first urine was rust tinged this morning then clear. went to step into the bath about a half hour later and not sure if i peed myself without feeling it or my water broke. fluid was clear. had a couple of light contractions but not at regular intervals. i will be 37 weeks pregnant in 2 days. at first i thought maybe i was just dehydrated but urine has been clear since. also having a lot of pressure and pain in my pelvic/cervix area. should i be worried.