I had asked this before and it was closed, so I would like some feedback on how I can narrow it down. In this worldbuilding scenario, pregnancy would be an active rather than passive process. A woman could biologically determine the sex of their child in the womb and make it a boy or girl. They could choose whether to carry it to term or abort it completely. Rate of gestation could be controlled, sped up or slowed down as needed. Birth would be a painless or maybe even enjoyable experience. Exteme stress would be detrimental to the pregnancy, and the baby's health could be adversely affected or cause its death. The question was: would these advantages be enough to justify or lead to a matriarchal society?
I think this question is fine. It is hard to answer as there are many aspects to the question patriarchy vs. matriarchy but I wouldn't say that this is not answerable.
A problem with your original question before your recent edit was that you had multiple questions, one of them being "What would be the social ramifications of this?". This is almost always too broad. But with the focus solely on matriarchy it should be fine.
I think this question can be posted. You should edit your original question and see what other users with more experience say about this.
For reference: Here is my first reaction to the OP posting on Meta and asking for help in chat.
Here are my comments on this topic I posted in the chat after some time where Pavel responded that the question is okay.
The question currently has 3 Upvotes and no negative comments after the most recent edit by OP, as well as no negative feedback in this Meta-Post so it should be reopened.