New study?

I’m 13 weeks and I still haven’t been able to hear baby heartbeat due to a “new study” They said I won’t be able to hear it until I’m 16 weeks as they claim a new study shows that hearing heartbeat that early can hurt/put too much pressure on baby/it could damage the growing baby. They used to do it earlier but now they won’t. I’m not really tripping since I see baby on the monitor and it’s so active lol. Even though I KNOW you can hear it as easily as 6 weeks, this is different to me and I’m just going along with it. How do you guys feel about this?