38 weeks pregnant - is this a sign of early labour?

Hiya - I started to have back and tummy pain on Saturday from 10.30am. I continue to go to the town and had lunch with my husband without worrying about the pain, I thought taking a walk helps. Early hours on Sunday I experienced severe back and tummy pains. Around 2.45am I contacted the midwife in hospital and she explained that it is a sign of early labour, told me to take a bath, keep an eye on discharge (Pink) and make note of the pain apart and take Painkillers to ease the pain. I went back to bed and had pains every 25Min's and not as expected 7 Min's apart. I finally got to sleep around 5.08am and didn't wake up till 12noon. I got up and had lunch, had a bath and then went to Tesco to do food shopping. I slept throughout the night and now this morning, back pain is back and I am wondering am I still in Early Labour. I don't want to contact the midwife every time I have a pain, she did explained expect the signs of Labour then phone in. I think I will put my feet up today and hope for the best. 14 days to go. Do you think I am showing signs of Early Labour?