Yes, you should. If you don't pull your Bitcoin from the exchanges pre-fork you're ability to claim the forking coin is at the mercy of the business decision making of the owners of the exchanges.

Example: Coinbase was not going to honor Bitcoin Cash for the customers but after the fork a lot of their customers started complaining. Some accused Coinbase of fraud - which, obviously wasn't true but just an indication of how naive these customers were. Coinbase relented and agreed to honor their cusotmer's claims for Bitcoin Cash and deposited it into customers wallets last week. This was 4 months after the fork occurred and only after Bitcoin Cash had greater support among the market place. There's been zero indication that Coinbase will be honoring Bitcoin Gold for their customers.

is you still get b2x although you use exchanger wallet?   (correct me if im wrong) , if you think that important why not , everything on you .  
yeah and also you get full control of your money when you put on cold wallet

Usually exchanges support the forks. There are even some wallets that are ready for most of the forks that Bitcoin is going through. I'd say it's safe to keep your BTC in the exchanges for the forks. But overall it's not safe to keep your coins in exchanges.

You don't need to pull your money, just save your BTC and let it remain at the exchange for you to get the result of the fork, the B2X which is equivalent to your BTC holding at the exchanges that supports this pork, it's an additional to your funds, so make it sure that the exchange where you have put your money supports the fork.

You guys know if binance and bittrex supported the BCC fork? If so, I'll just leave it in there. I think they did, but I wasn't around here for it to happen...

Bittrex hasn't issued any statement till now but here it's mentioned it does: https://cryptocoinmastery.com/what-exchanges-are-supporting-segwit2x/

I guess there are some exchanges that support B2x fork as well like Yobit supports it as well as Hitbtc and any other wallet whose private keys you would credit you with the same amount like blockchain, jaxx, electrum and so on.

Yes but before the fork you need to control the private key. Which is what bitcoin core will allow you to do so. You can then import the private key into the wallets which support the fork. Which I don't think any exist right now due to it not being forked yet.

Exchanges don't give you control over private keys therefore moving your funds to bitcoin core would be a wise choice.

Well since I do not have much bitcoin I will secure it.  Just do what you think will benefit you the most.  It is better to act now rather than to overthink and end up beating yourself.  I want the best for my bitcoin so definitely I will pull them out to the exchanges.

Referring to those experts here in bitcoin will help you a lot, some says to pull out your money and put it in the trusted exchange some says just hold it buy I do the same to pull out and put in an exchange where I put my 100% trust so I have an assurance and I can calm down and can sleep at night.