I’m sorry the person you spoke to was horrible, it’s her job to support and help you, not judge you.
Can I ask if that was the midwife or the social worker ? Please take someone with you to the appointment if your possible can.
The most important things is to look after yourself and baby’s health. This includes your own mental health and well being .
Just to let you know - when you talk to SW they will ask about your Baby’s father and his family and they will seek to contact them, to see if they would be interested in bringing up the baby. They will also ask the same about your own extended family.
Baby’s father will have the right to raise them, unless they are proved to be unsuitable ( convictions for violence, an addict, unstable lifestyle etc ) .
This is because it’s policy to place the child with family if possible.
You can express your views about this and give your reasons but you can’t block it completely . SW will place your child where they think it’s best.
Eg you can say “ I’m catholic and I want my baby brought up catholic so
I don’t want baby placed with His parents because they are CoE”. But SW might well override that because of the child’s best interest.
Similarly with unrelated adopters. You can say eg “ I want baby to be an only child “ and they will take account of this. Some local authorities will give you anonymous details of several families and ask which you would prefer . But you don’t get to choose.
You can ask to meet the prospective adopter/s once they have been chosen.
You can Also ask for “ letterbox contact “ , which is usually an annual exchange of Letters and sometimes photos.
You can write a letter telling baby about yourself , to be left on his / her file to read when they are older.
There are lots of options which you can think about and discuss with your family. You don’t have to decide anything right now.
I’m really sorry to read about your situation. You must be feeling very shocked . And it’s totally normal to be terrified about the labour and birth, many women are. It’s even harder if you don’t feel you can keep the baby. You will need to build is a lot of support for you, whatever you decide to do after the baby is born.