To Test or Not to Test

Stacy
Hi Ladies, 
Ok I'm a couple of days overdue now and am getting some weird stretching pains and also back pain.
I've been here and done this before with a miscarriage I November and also an ectopic a year ago.
I'm praying not to come on and even dodging the toilet as don't want to see that horrible realisation I'm not pregnant.
I took a test 2 days before I was due but was negative.
Should I be worried about these pains and should I test?
Thanks Stacy