AITA for setting boundaries
I (25f) and my boyfriend (24m) have been living together almost a year now with my son (m6). My boyfriend and I started dating almost 2 years ago now prior to that I have been raising my son with the help of my parents and grandparents. My son looks at my dad as a father figure and is very close to him. Also worth mentioning before I get to the story is that I am 32 weeks pregnant with my boyfriend's child.
My boyfriend and I have been developing boundaries with my family now especially since my sister moved in with her boyfriend in my parent's basement. She only just met him in person a few days ago. They have been talking over the phone for maybe 6 months now.
The first time I met him was at my son's field day that my sister brought him to without asking me prior. The next day it was my son's choir concert and she brought him then as well without asking me granted she also brought him over to my grandma's house where we all gathered to get him ready and eat dinner. Wednesday rolls around and I decide that since I have time and they have time that I would go up town with them get to know my sister's boyfriend so I am not as anxious about having my son around him. I also used that chance to try and talk to them about not wanting my son to get close to her boyfriend quite yet and to just take things slowly. They interpreted my conversation as the boyfriend could still be around my son just to let my son take the lead on whatever relationship they form.
Due to my conversation not being interpreted the way I wanted it to be I spoke to my mother and grandmother about how I felt. I explained that I felt uncomfortable having a stranger be apart of my child's life all of a sudden. I do not know him well yet and I think it was inappropriate that he is being brought to all of my son's events. Had my sister have known him in person for awhile prior to him attending events and being apart of my son's daily life I would not have made a fuss. I also explained that I'd like to slowly introduce my sister's boyfriend to my child. That my boyfriend and I would love to go out with my sister and her boyfriend to get to know him better. My family did not take that well.
My family's opinion is that they are all around and would never let my sister's boyfriend take off with my son alone. That my son should still be able to stay the night at my parent's house every weekend like normal even though that's where my sister and her boyfriend are currently living. In order to explain just how dangerous I feel this still would be I used the example of what if my sister's boyfriend is a murderer. He could murder everyone in their sleep for all we know because we do not truly know the guy. I suggested that if my parents or grandparents want to see my son they could come to my house for now. Or if I know my sister's boyfriend will not be there I would take them to their house. For right now I feel more comfortable seeing my sister's boyfriend occasionally with my son.
AITA for setting these boundaries?