Getting pregnant less than a year after delivery

GP
I am curious about this topic. When I read medical information about it, pretty much all say to wait at least one year to get pregnant again, some even say 18-24 month. But, I read of many moms getting pregnant again just months after delivery. It is way to soon for me to be thinking abut this since I am 14 weeks pregnant now, but my idea was always to have my babies pretty close. My due date is one month before my 33 birthday, so I don't want to wait long since this is my first baby. For those that were in that situation, can you tell me your experience? What doctors said to you? Did you or your baby have any complications?
Thanks!!