i am 36 weeks pregnant and last night started havin strong, painful, close together contractions. they were less than 10 mins apart. also had loose bowels etc. thought i was in labour but didnt want to rush to hospital to be sent home so went in the bath etc. and decided to get some sleep. been awake all night but the pain seems to have changed from regular contractions to a more constant ache all around pelvic and lower stomach and back, with the odd 'contraction' every now and again. has anybody else experienced anything like this? any advice?