Rip mama

Please I need more information about giving birth in Brazil because am 25wks pregnant, planning to deliver my baby in Brazil and I already have my visa but the problem there now was that our plan before was to go to my brother-in-law in USA but I was refused so I decided to go to Brazil instead but my Hubby and our son is nt with the Brazilian visa so I want to ask if it possible for them to benefit the Brazilian passport if they join me before I put to bed or after I put to bed and again is it a place that I'll be conducive for me and my family to stay for the year, can we get something to do, will it be easy for us to cross from there to USA. Please