When your gift says Funds Pending on your Gift Tracker, it means that your funds haven't cleared from your guest's credit card yet. It can take up to 4-5 business days for the funds to clear on their end, and then you'll be able to transfer those funds to your account.
You'll know the funds are ready when the status on your Gift Tracker changes to Withdraw Now. Once that happens, you can click Withdraw Now to start the process of depositing the funds into your account. Note: If you have not added a bank account yet, you will see a button to Add Bank Account, which you can do in advance here.
Your initial transfer can take up to 5-10 business days, and any subsequent transfers will take only 2-3 days.