Eight months is not too early, and quiet distance is a more common reason people book than loud conflict is.
What you are describing has a name in the room: you have moved from the arrangements of a wedding to the ordinary business of living together, and nobody told either of you what to talk about once that is done. Couples often mistake the silence for incompatibility when it is actually a habit that formed quickly and has not been interrupted.
Two things are usually worth looking at first. One, whether the silence is comfortable for one of you and painful for the other, because that asymmetry matters more than the silence itself. Two, whether either of you has been avoiding a specific subject, and the silence has spread outward from it.
You are not overreacting. A couple session is ninety minutes and you are not committing to a course of them.
This is general information in reply to a public question, not advice about your own situation, and it does not create a client relationship. If you are in immediate danger, contact emergency services.
