From an expert judgment …lets change places, suppose now all of you are at Algeria and you will have to look after your mom and be at your place and her’s daily or even every after a day.
To tell you the truth, mothers here in Egypt, especially classic ones ( who were youth at the 50’s – 60 ‘s) are different, you can get a win win situation if you managed to reach a middle solution for both of you.
In Egypt, family bonds are strong and family socialization on weekly basis is the trend unless he /she is a single son/daughter or as (don moe) mentioned.
My advice is: try to be political, politics works with Egyptians
But you have to believe that all of your hearts are in the hands of god, he stirs it as he wants, so ask god to help you turn your hearts to the best for your family and your life, not what you need or want.
You are now in a bond called family whether with your husband’s family externally or with your husband and baby internally, so be political in your actions and ask god as he knows best
Each man got a key, keys are different from man to another, even mothers in law got keys especially here in Egypt.
But remember before taking any action that you are not alone, and you have to think of the future that will rely on your decisions whether it is better or worse for the family that consists of you your husband and the baby at the top then husbands family and your family after.
Hope any of my words were beneficial to you.