37w+ and top of bump tightening

For days now (since turning 37weeks) I been having daily bump cramps/tightening. It started off as period like pain in my back and then the whole of the bump but mainly at the top. It would be more or less constant but I did have few contractions (on and off) the last few days but not more than 1-3 a day. This is my second but I was induced after my waters broke with my daughter so never had any pains or issues before. Anyone else? I want baby to stay in till 39w but just wondering if it's a sign or just late pregnancy symptoms :) :)