I am nearly 6 weeks pregnant but am getting backache (a bit like those with a period) on and off, as well as occasional 'twinges' in the abdomen and am scared that these point to an imminent miscarriage. Has anyone experienced this but gone on to have a healthy baby?? I've got a 2 yr old and had a miscarriage in the Spring (at about 5 1/2 weeks, with period type pain, and some spotting) Thanks - experiences either way gratefully received.