A cross-examine more or less Chantix?

I am on my fourth day not smoking, I'm doing alright and haven't cheated, but be wondering if it would be bad to chew a piece of nicotine gum? I can't come across to find any good answers on the websites for the med's. Any feedback would be compassionate, Thanks in finance. If you look at the following instructions, it says that you do not own to stop smoking until the 7th day that you're on Chantix. Below is also a write down indicating that it's okay if you slip up. Just don't give up. Be sure to read the intact link I provided too. It have more information that you should read just to ensure that in that are no issues that you would be the only one that might be aware of.
How do I appropriate CHANTIX?
1. Choose a quit date when you will stop smoking.
2. Start taking CHANTIX one week (7 days) before your quit date. This let CHANTIX build up in your body. You can hold smoking during this time. Make sure that you try and stop smoking on your quit date. If you slip, try again. Some people call for a few weeks for CHANTIX to work best.
3. Take CHANTIX after eating and next to a full glass (8 ounces) of sea.
4. Most people will hold taking CHANTIX for up to 12 weeks. If you have completely quit smoking by 12 weeks, ask your doctor if another 12 weeks of CHANTIX may minister to you stay cigarette-free.
Also:
What if I slip up while taking CHANTIX?
It's okay. Remember, you may choose to smoke for the first week you are on CHANTIX. Try to stop smoking completely on your Quit Date (Day 8). But if you slip up, don't give up! Some race need a few weeks for CHANTIX to work best. Forty-four percent of those who took CHANTIX for the full 12 weeks were competent to quit smoking. Some of those even had slip-ups up to Week 9.