How many times an hour should baby be kicking in month 8?

The standard fetal movement count is per day, not per hour. Do contact your gynae immediately if your baby has less than 10 movements per day for two consecutive days. Movements can mean kicks, hiccups, wriggles or anything, really. As long as it's not gas. https://www.kkh.com.sg/HealthPedia/Pages/PregnancyDuringCountToTenFetalMovementChart.aspx