Do I have a problem? Like seriously?

I made it a poll because they get more attention and I really need to know..

I have 3 kids 3 years old and younger. I'm 20. After my first pregnancy I just always feel the need to be pregnant idk why I just have constant baby fever that won't go away.. I just had my 3rd baby 2 weeks ago and feeling that baby fever coming on strong but I know I don't need anymore kids right now... is this like a real thing? Like is this some kind of mental issue or something I should seek help about? I feel crazy