Hello everyone! Girls, please share your experience with contraception…

Hello everyone! Girls, please share your experience with contraception so that we can be sure. I understand that bodies are different for everyone, but I want to know which method has a higher chance of protection. Only excluding pills, because my work is such that it's not always possible to take them at regular intervals. I don't want to tie tubes yet either, just in case I might still want to have more children someday. Thanks)