Did you use any contraception po? Like condom or anything? If not, may chance po na may mabuo. If nasusunod nyo po yung requirements for LAM, like breastfeeding on demand, etc., pwedeng ma-lessen yung chance na may mabuo, pero hindi pa rin po 100% guaranteed na safe. Best to talk to your OB po about your options for contraception and use barrier method like condoms. Withdrawal isn't reliable din po kasi nakakabuntis din kahit precum.