I can't save data input in my array, why?

I cant save my input in my array, so when i put all the answers in, and i want to se what i have in my array, all the spots are empty. This is whats happening since i put the if-statement there. If i remove the if-statement, the input will be saved in my array but it will miss the first input, so i will have 23 out of 24 answers.

Ive tried to write an else-statement aswell, but same problem with the one missing, same if i delete the whole if-statement.

    {


        if (numberOfBottles < 24)
        {
            Console.WriteLine("");
            Console.WriteLine("Write what sodas u want in the crate:"); // Skriver ut text och ber användaren skriva drycken. 

            int soda_input = 0;

            string chosenSoda = "";
            do
            {

                Console.WriteLine("1: Coca-cola"); // skriver ut alternativen för flaska
                Console.WriteLine("2: Fanta");
                Console.WriteLine("3: Pepsi");
                Console.WriteLine("4: Beer");
                Console.WriteLine("5: Redbull");
                Console.WriteLine("6: Cider");
                Console.WriteLine("7: Water");


                try
                {
                    soda_input = int.Parse(Console.ReadLine());
                }
                catch (Exception e)
                {
                    Console.WriteLine("Just numbers, my friend");
                    continue;
                }

                if (chosenSoda == null)**
                {
                    crate[numberOfBottles] = chosenSoda; // lagrar svaren i min vektor
                } THIS IS THE IF-STATEMENT THAT IS MESSING EVERYTHING UP

                numberOfBottles++;  // för varje svar jag skriver så ökar det med 1 i vektorn hela vägen till 24

                switch (soda_input) // Skapar en meny, som skriver ut vilken dryck användaren väljer tills backen blir full.
                {

                    case 1:
                        chosenSoda = "Coca-Cola";
                        Console.WriteLine("-------------------");
                        Console.WriteLine("Du valde Coca-Cola");
                        Console.WriteLine("-------------------");
                        break;

                    case 2:
                        chosenSoda = "Fanta";
                        Console.WriteLine("-------------------");
                        Console.WriteLine("Du valde Fanta");
                        Console.WriteLine("-------------------");
                        break;

                    case 3:
                        chosenSoda = "Pepsi";
                        Console.WriteLine("-------------------");
                        Console.WriteLine("Du valde Pepsi");
                        Console.WriteLine("-------------------");
                        break;

                    case 4:
                        chosenSoda = "Öl";
                        Console.WriteLine("-------------------");
                        Console.WriteLine("Du valde Öl");
                        Console.WriteLine("-------------------");
                        break;

                    case 5:
                        chosenSoda = "Redbull";
                        Console.WriteLine("-------------------");
                        Console.WriteLine("Du valde Redbull");
                        Console.WriteLine("-------------------");
                        break;

                    case 6:
                        chosenSoda = "Cider";
                        Console.WriteLine("-------------------");
                        Console.WriteLine("Du valde Cider");
                        Console.WriteLine("-------------------");
                        break;

                    case 7:
                        chosenSoda = "Vatten";
                        Console.WriteLine("-------------------");
                        Console.WriteLine("Du valde Vatten");
                        Console.WriteLine("-------------------");
                        break;


                    default: // om man skriver siffror ovanför 1-7 så skrivs detta ut.
                        Console.WriteLine("-------------------");
                        Console.WriteLine("Siffor mellan 1-7 min vän");
                        Console.WriteLine("-------------------");
                        break;
                }

            } while (numberOfBottles != 24);

        }
        else
            Console.WriteLine("");
        Console.WriteLine("The crate is full, choose some of the alteratives to check the crate:");
        Console.WriteLine("");


    }

EDIT: "Du valde, means U chose.. in swedish.