C++ Class， the member object in the Class can be created using ’this‘ pointer outside the construct func？

#include<stdio.h>
#include <iostream>
class myClass;

struct Member
{
    Member(myClass* m)
    {
        std::cout << "member is created" << std::endl;
        my_class = m;
    }
    myClass* my_class;
};



class myClass
{
public:
    myClass()
    {
        std::cout << "myClass is created" << std::endl;
    }

    Member my_member =  Member(this);
    int x = 1;
};

void test() 
{
    myClass mClass;
    std::cout << mClass.my_member.my_class->my_member.my_class->my_member.my_class->x;
}

int main()
{
    test();
}

i define a Member Class, and it can construct with a myClass pointer. importantly, i define the my_member outside the myClass constructor, will it lead to recursive construction？ the code above runs well, is it explainable? when does the 'this' pointer is created and can be used?