Welcome to our forum.
I have not been a swinger and went straight from monogamy into a polyamorous situation. But what we do have in common is that polyamory "happened to me;" I hadn't "planned to try it out."
Polyamory requires lots of learning and communication, so definitely study the various threads on these boards, post, and learn as much as you can. You're still in the very early stages of your poly relationship and there is lots of NRE (New Relationship Energy) going around to confuse the feelings of insecurity that sometimes arise. You might want to do a search or tag search here on "communication."
The four of you will want to get to know each other even better, understanding each other's hopes, fears, wants, needs, etc.
Hope your stay on Polyamory.com is a fruitful one.
Love means never having to say, "Put down that meat cleaver!"