Miscalculating words/spaces

[raulian]

I was suppose to create a programs that reads out all characters, spaces, and words in a txt file, also a word would be anything followed by a space and also includes punctuation marks as words.
So far I have done everything that I am suppose to, but running the txt file under certain circumstances such as "space.space" in creates double words this is my code so far.

#include <fstream>
#include <iostream>
#include <conio.h>
#include <cctype>
using namespace std;


int main()
{
	char ch,oldch;
	int cnt_ch=0, cnt_words=0, spacenum=0;


	ifstream poemfile;

	poemfile.open("F:\\Super Computer programming\\Roses.txt");


	if( poemfile.fail() )
	{
		cout<<"The File could not be found. Terminating\n";
		getch();
		exit(1);
	}




	ch = poemfile.get();
	
	
	

	while( !poemfile.eof() )   
	{   
		cout<<ch; 
		cnt_ch++;
		ch=poemfile.get();

     if(ch == ' ')
	{
		spacenum++;
    }
    
     if ((ch == ' ') && (oldch != ' ') ) cnt_words ++;  
 
  
    	     if ((ch == '?') || (ch == '.') || (ch == '!')) 
                {
    
                      cnt_words++;
       
                }
   

}

	poemfile.close();

	cout<<"\nThe file had "<<cnt_ch
		<<" characters, "<<spacenum
		<<" spaces, and "<<cnt_words+1
		<<" words\n";

	cout<<"\n\nNormal termination.\n";
	getch();
	return 0;
}