Nicotine gum

Hi ladies so basically i am 8 weeks pregnant and i am trying to quit smoking, my midwife appointment is in next 2 weeks but i want to start before she even calls me, im wondering if its safe to have the nicotine chewing gums when pregnant, i have the spray and patches but i would rather have the gum? Has anyone else quit smoking and how did you get on? What methods did you use?