Completely normal and a really good sign that things are coming along! Period pains are uterine pain every month, and it means that your body is starting to warm up for labour.
First baby I had some period pains a few days before I went into labour but they were pretty weak. Second baby I had quite a lot of cramps in the days leading up to labour. Your midwife will be very reassuring I'm sure.
Also be aware that many women take contractions for 'bad' period pains, sometimes quite a long way into labour. Don't think that contractions are completely different things. Both my labours have featured contractions that are basically ramped up period pains.
Nothing more, just recurring pain a few time throughout the day... But midwife said it was all normal and not to worry. She wouldn't be drawn on how soon dc would make his appearance....said it could be hours or weeks. Really hoping he comes soon! I'm desperate! Thanks ladies.