So my MIL, before I was even pregnant, mentioned (on numerous occasions) that she will be over at our house and will sleep on our couch the week after we have our baby. She did this with my SIL... and I am sure was very helpful. Here is the problem. My own mother used to do the same thing, but she died 2 years ago from breast cancer. I have 2 older sisters, with 2 kids each, and they have both offered to step in and fill this tradition since our mother can not be there. I always knew that I would mourn my mother's death the most when I eventually was ready to have kids of my own and I'm telling you (the anniversary of her death happened to land right on mother's day this year, that was fun

) it really has been hard. My problem is, my MIL is going to fill every single grandma responsibility. My mom is not here so it is all going to land her, and she will LOVE it. She is a great grandma, but this is one thing that I just can not have her do. How do you think I should, or DH should tell her that this is just not going happen? My MIL is rather pushy and emotional, and gets her feelings hurt SUPER easy (ugh) and I just worry that it will not go over well.
btw... I am all for her coming over to visit during the day. I just don't want her there 24/7.
Re: MIL and the week after baby's due
If so, I would just tell her that your sister will be staying with you during that time and you don't need multiple houseguests, at the same time making a big deal if how nice it will be to have her there during the day. If she makes an issue of it, then I wouldn't hesitate to explain that you would really like to spend that time with your sister(s) in honor of your mom. Sounds like her feelings will be hurt no matter what, but hopefully she will understand.
ETA, if this were my MIL, I would have no problem being the one to tell her, but if you think it will be taken better from DH, then send him in to do the dirty work.
I hope you and DH can find a good solution that works for you and that your MIL will simply be happy and appreciative of any time she gets to be there and help out. It is up to you two to invite her to spend time with baby. Not for her to dictate.
If this were me and I really really didn't want his mom there. I'd have DH ask her not to stay with us. Have him tell her it isn't anything personal towards her (even if it is) just that her being there would be too much of a reminder to me that my mom couldn't be there or something like that.
I'm sorry again about your loss.
Praying unceasingly for a miracle. ALL welcome!
If it were me, I would write or email almost exactly what you said here, to be able to get your words and feelings out without interruption. She will absolutely understand!
Hugs
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Edit: hit post too soon
Edited because my phone posted before I was finished typing lol
I think if you don't say anything now, you'll have a lot of other times in future where you wish you'd spoken up this first time and avoided other awkward situations. I don't mean this in a horrible way, but "put her in her place" now.
I hope once she knows the reason behind why you feel that way she accepts it gracefully and steps aside.
I'm sorry for your loss as well. My mother in law (who I was more close to than my own mother ) died of brain cancer when I was pregnant with ds. My due date was the day she was diagnosed one year later. Yesterday would of been her 50th birthday and it was a really rough day.