Using adoption to pressure me into children

My partner has had a rough past and has been abused sexually at the start of our relationship kids of our own had allways been a possibly and I was the happiest ever knowing we would have a child of our own and raise it together over time because of silly quotes on facebook and what she has herdvfrom other people she has now locked up and wants to adopt and is using the adoption processvas a play tool if I dont agree to it shes gone we have been engaged over a year and are going strong I am all for kids of our own but would never ever have a conection with an adopted chile after being pressured into it what do I do how do I convice her our own kids is the best thing

1 your own 1 adopted,problem solved you get ur wish she gets hers