Is cramping during early pregnancy normal? 3w4d

Casie
I just got my BFP yesterday. AF not due until Wednesday. I am cramping mildly though. Intermittently. I have miscarried once before, at 5w2d. i cramped then too, but it was accompanied by bleeding at the same time. I am not spotting at all now currently. Should i be worried? Family tells me it is normal but i just want thoughts and advice. Thanks!