Is this normal 1st baby please ease my mind.

Hi ladies this is my first baby I'm 6+3 days and due feb 5. Well I have been having cramps and my legs hurt along with felling hot flashes all of a sudden I just want to know is all this Normal I'm so scared cause I'm afraid of losing my baby this is my 5th pregnancy I'm just so scared but I Dnt really have anyone to tlk to about this that will understand how I feel so any advice and encouragement would be nice.