no - the checks won't begin to be sent until the week of April 24 and will be mailed in 'income order', meaning if you income is less than $10,000 they will mail the week of April 24, if your income is less than $20,000 those are expected to be sent the week of May 1, etc.
the IRS is required to send you a letter within 15 days AFTER the check is mailed to confirm everything,