Giving my baby up for adoption

I am currently 6 weeks pregnant with my fourth child. I just recently got out of a long term relationship with their father and slept with a guy shortly after we broke up.

I would have 3 kids under 3 and a 5 year old. A single mom in low income housing. I am 23, I already feel so stressed some days raising 3 young kids I honestly feel like adding another would break me.

I want more kids one day but not this soon and not with someone I’ve only known a few months and doesn’t have their life together...

I have considered keeping it and thinking about how that would play out.

I have thought about abortion, I know that would be the easiest think and then I can just go on like it never happened.

I have also thought a lot about adoption, helping out a family that can’t have children.

My aunt and uncle are in their early 40s, they have been together for over 12 years and have been trying to have kids however she is not able to she always miscarried.

I would love to be able to give them a child because I know by seeing my aunt with my kids she would be an amazing mother she is a great person and my uncle would be an awesome dad. My auntie said she would love to adopt the baby and is going to talk to my uncle and let me know within the next month...

I know this would be an amazing thing for them and I know I want to do this for them.

My only worry is for the child if they ever found out I was their biological mother

Would they hate me? Would they wonder why I kept my first three and not them?

I know this is a big decision and once the paper are signed there’s no turning back.

Are there any woman that have done this?

I don’t even know how I would go about doing this? I live in Canada, do I just get a lawyer sign papers and they take the baby from the hospital ?