Repost- slept on back 24wks

I am 24 weeks pregnant and accidentally fell asleep on my back... I estimated I slept for about 3-4 hours before I woke up and was light headed and both arms felt tingly....

I feel so stupid for something i could have prevented but was so comfy on my back and accidentally fell asleep that way. Did I hurt the baby?????? 😢 I read that it can decrease the blood flow and oxygen to your baby.. now I am worried I did damage just from falling asleep on my back....