6/7 weeks pregnant cramping&bloating

Hi, so im 6 or 7 weeks pregnant, pregnancy calculators have given me 2 different answers haha! I have had two previous miscarriages around 8/9 weeks so im terrified of this happening again.. I have got extreem sore boobs but no sickness? Is this a sign something is wrong? Also i am having period like pains in my stomach, do you think something is wrong?

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