normal? (1st time mum)

Okay lang po ba kapag may naffeel ako na nagsstretch/nagppull sa tyan ko, palaging gutom, at yung boobs ko nagttingle po sya, mostly sa gabi then I have backpain most of the time.. normal lang po ba yun when pregnant? Advice din po kasi first time ko lang po Ito.. teen mom, 18 this october.