What would happen if a couple had unprotected sex every day?

I want to know about the above.

I know that if a couple had unprotected sex, then that will result in pregnancy and after 9–10 months the woman will give birth to a child.

But if a couple have unprotected sex daily then what will happen?

Is there any dangerous thing about doing that or not?

May it result in twins , triplets… etc.

can a couple have unprotected sex daily?

Please explain in full detail.