Can masturbation harm reproduction in men?

Dear Friendly Health Expert or Reader,

I have been masturbating since I was 13 year old. I am 26 now and going to get married very soon. Actually I had to postpone the wedding several times as I was very much worried that I can't get my wife pregnant. I have a grilfriend. I have dated with her for 6 years and I just don't want her to be unhappy for ever or divorce. I am afraid that I used out all my sperms I have.

Here is the problems that make me worried about:

1. After I urinate I have to wipe the opening of my penis with a tissue or cloth to dry it. Because it is still wet and some drops still leak out.

2. After orgasm caused by manual masturbation I am now releasing very transparent sperms. Sperms look like a water not like a milk.

3. My penis is very small and has not got much of hair on it and around it.

4. When I masrurbate I am reaching my orgasm very fast. (whithin 2-5 mins). Is it normal?

Can I make babies when I marry? How serious is my case? What should I do in my case?

PLEASE DON'T BE SHY AND DON'T FEEL UNCOMFORTABLE TO SEND YOUR COMMENTS AND FEEDBACKS TO MY E-MAIL.

Thank you! Alisher