Gave birth Premature

In February I gave birth at 23 & 2days. He was breech so I had a c section. No answers from doctors so far as to why it happened. Or if I have issues within. It took me 4 years to conceive to give birth to my preemie who unfortunately passed two weeks later.. I’m just curious if anyone has ever had the same issues or anything I could possibly to get pregnant again.. I know once pregnant I’ll receive shots to prevent early labor.... ty