Hello Kinzismom:
Sorry I didn't get to this yesterday although John has it covered already. There are people out there who will tell you that quitting cold turkey is too hard for all people and NRT and other pharmaceutical products will lessen the impact and improve your success. But as you see at Freedom, cold turkey is not too hard considering everyone here has pulled it off and if you talk to ex-smokers here and elsewhere who have successfully quit cold turkey and had used other miracle products in the past--that the cold turkey quit was likely no worse and in many cases even easier than the previous pharmaceutically aided attempts. But even most NRT advocates don't push the products to pregnant women leaving cold turkey the basic method of choice by most.
As far as being cold turkey possibly being too hard on your system--the short-term effects of withdrawal are nothing compared to the chronic assault of nicotine and carbon monoxide on the fetus. The risks of not quitting are real and as can be seen by the article and link above, if you are worried about the health of your baby and then your ability to be a parent to your child for a longer and healthier lifetime always remember to never take another puff!
Joel