If my baby is born in Vietnam will it be difficult to get her a Dutch pport?

My boyfriend and I are expecting our first baby this year. He is Vietnamese and I am Dutch. Baby will be born in Ho Chi Minh City. We are not yet married and I was wondering how difficult it would be to get the baby a Dutch pport? Because one day we hope to live in Europe. And if we are married how difficult is it for him to get visa for Europe? Thank you :-)