Have someone due to whelp? Our monitoring service leases a uterine contraction monitor and an ultrasound Doppler for use in your home. Equipment hooks into your regular phone line, and transfers information about labor to our whelping center. WhelpWise is available to clients on service 24 hours a day-7days a week Use of the whelping equipment begins 4-5 days before the expected due date. The WhelpWise service is ALWAYS offered in conjunction with your veterinarian.