Cramp week 6 of pregnancy

Week 6 of pregnancy, Looking for some advice, getting cramps that last ~10-15 mins, this is accompanied by hot flushes and nausea though not actually been sick yet, had diarrhoea with it at 4am last night. Cramps are dull but quite moderate (4-5/10) no spotting / bleeding. This tends to then clear and I feel ~normal again. Happening about 2-3x/day. Should I be concerned / see a dr or does this sound fairly normal ? Thanks.