yes the cramp is normal. as long as the cramp pain is bearable, no bleeding, should be okay. as for movement, i only sense the very 1st movement at 18weeks. some ppl only feel at 20 weeks. as for tummy size, the more you dont have to wry about. my tummy only started to show at 5mth. 3 days before i delivered, i went to salon and cut my hair, thru a conversation, the hairdresser asked me "you about 6mth preg only right? how come so fast need to go c-sect?? what happened?" i dont know to laugh or cry. hahahaha!!!