[Django]-Django Create Multiple Objects (Same Model) From One Form

I know it is a little late to answer this but i found this unanswered and i thought i could contribute
There can be multiple solutions to this.
I can mention one which i believe will suit your need.

<!--This is the form for parents and Javascript inserts Dynamic Fields -->
<form id="parent_form" method="POST" action="{% url 'url_name' %}">
    <input type="text" name="parent_name">
    <input id="child_count" onchange="inject_child_details()" 
    type="number" name="number_of_children" min=0>
     <div id="child_details">
        enter code here
     </div>
</form>
<script type="text/javascript" nonce="{{script_nonce}}">
function inject_child_details() {
  var x = document.getElementById("child_count").value;
  details_div = document.getElementById("child_details");
  details_div.innerHTML = ''

    for(var index = 1;index <= x;){
    details_div.insertAdjacentHTML('beforeend','<input type="text" name="child'+index+'name" placeholder="Name of Child '+index+'">');
    index = index +1;
    }

}
</script>

The HTML to insert should be in a single line or should truncate with

'+
and next line should start with the above inverted
+'