Is the mobile base station installed on the roof harmful to human health? Especially for pregnant women, does it affect fetal development?

On the roof of the city, we often see the simple tower of the mobile base station, which is unprepared for sending and receiving. The base station emits electromagnetic waves, and our mobile phones are constantly receiving and transmitting. Electromagnetic waves have little effect on human body, even if there is, it has little effect, so it has little effect on pregnant women and fetuses. As for the security gate, it is different. X-ray inspection at the security gate has an impact on pregnant women and babies.