I'm 18 weeks pg with DC4 and I've had period-like cramps with back pain on and off since yesterday evening. I am totally paranoid about pre-term labour having been through that with DC1 and DC3 (not at this stage though!). I've drunk plenty, rested all morning and had a bath but the pains keep coming back. It doesn't feel like PTL though so I've wondered if it's just 'growing pains'. I can't decide if it's worth bothering the midwife or just seeing how things go? I feel pretty rubbish today with a sore throat and cold anyway so I just want to go and lay down...