Am I being overly sensitive?

My MIL is overbearing - to the point where I don’t want to be around her. She has my child 1 and a half days (he’s at nursery the other half day) a week whilst I work. My mum also has the same. Since I got pregnant (first time round) -‘d gave birth here’s a list of all of the things she did that annoyed me - - invited her family members (some id never met) to my baby shower. - a week before our wedding she told us she wasn’t sitting with her ex (my husbands bio dad) and started counting all of the family members I had compared to my husband. Baring in mind he has a massive family and none of them make the effort so why should they come to the wedding? - on the night I was released from hospital after a traumatic birth she followed us back to our house, she invited my FIL and SIL to come over with Thai food. Our LB started crying and she immediately took over, changed his nappy and told my husband to hurry up with his milk. She then gave the bottle to my SIL to feed him. - as my LB has gotten older she has become more clingy, everytime she picks him up she constantly holds him. He’s 25 months and she constantly cuddles him, kisses him and is just overly clingy. It’s gotten to the point that when he comes home he shouts “Nana” and “no mummy” when she goes to leave. - she buys him cake and sweet stuff, brings it to our house and then leaves when I say he can’t have cake and he has a tantrum. She actually said “I’ll leave mummy to deal with that” the other day. - I told her this morning that our LBs nursery has said how well mannered and polite he is, her response was “that’s because Nana taught him to say please and thank you” - that absolutely boiled my blood. - there’s been times where she’s brought him back late without telling me or letting me know she was stuck in traffic. - she’s fed him stuff we’ve asked her not to feed him. - for Christmas she got him a whole sack of toys and clothes (we told each grandparent to get him one big present and not loads) and then got annoyed when we said we can’t take it home because we don’t have the space. There’s more but rn I can’t even think… Im pregnant with my second and she’s going away 1 day after my due date. We told our parents no visitors for the first week so we can settle in as family as four. She told her friend “I’ve been told to stay away for 2 weeks” which isn’t what we said at all. . She said she hopes I give birth early so she can see the baby before going away. My husband keeps saying he’ll talk to her because she’s crossing boundaries but he never does. I don’t think it should be up to me to say anything but there’s only so much more I can take and we need to establish firmer boundaries before baby girl is here. Help?!