Life happens and you would not be the first person to face this dilemma. As such, there are safeguards in place to help.
If you anticipate your situation to be short term, you may qualify for either a deferment or a forbearance, which would allow you to temporarily suspend your payments. Note: You will continue to accrue interest during this time. Alternatively, you may want to consider switching to an Income-Driven Repayment plan to lower your monthly payments. These plans are based on your income and family size and, in some cases, you will not owe any payment.
The most important thing is to contact your loan servicer. They will be able to help you sort through your options.
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