Check the current status here: http://segwit.co/
If you are worried, or uncertain, about a possible split in Bitcoin, check out SegWit.co. This post is to assure you, hopefully a little bit, what's coming. As of today we're at about 47% acceptance for either. The hardfork (BTC Unlimited) needs 51% to activate, whereas the softfork (bigger block sizes) needs 95%. Considering the activation period is only about 8 days away, MANY people are going to panic. That means, if you're trading either invest all of your BTC in USDT, USD, ETH, or an other cryptocurrency, which you hope carries your "worth" over. Now, if you don't want to panic, look at the Litecoin SegWit charts at LiteCoin SegWit Adoption (http://litecoin-segwit.info/). The network adoption jumped in the last 7 days over the 95% mark. Probably due to the fact, that many developers of mining software were a little late releasing updated software or miner not having updated until the very last second. Something similar might be happening in Bitcoin.
GDAX will help their users by not allowing them to trade, and withdraw:
In either scenario we will implement safeguards to ensure the safety of our customers’ funds. For example, we will temporarily suspend the deposit and withdrawal of bitcoin on GDAX and may pause the trading of bitcoin as well. This decision will be based on our assessment of the technical risks posed by the fork, such as replay attacks and other factors that could create network instability.
https://blog.gdax.com/preparing-for-the-bitcoin-user-activated-soft-fork-86844d7012d0
So, in summary, there's no reason to be worried yet. We might see the adoption "jump" until it's almost too late. As a security measure, to safe you funds, some even recommend to withdraw to a safe wallet that allows for Bitcoin types.
A good video too:
The softfork is for the people, the hardfork is for the miners.