hey Bev,
Me too - I have had the tight feeling off on and for about 2 months, but in the last two weeks I've had period like pain in the front and in my lower back - the pain requires heat packs and last about 30 mins. On Sunday I had them at 6am, 10am, 4pm (all for about 15-30mins).. This morning I had it once at 4am, again lasting about 20mins and requiring heat pack for the pain.. I'm pretty close to your EDD, so I think we are normal.. One of the girls in our Due in June group (Jo or Karen I can't remember) also had these, she asked her OB and he said it is good practise, it means we will have an easy labour! Not sure if he was just saying that to make her feel good, but at this stage, I'm taking all the positive vibes I can get....and passing them on!

hope you feel better soon