Welcome to our forum.
It sounds like the big challenge for you and your husband is getting used to the emotional aspect of having other partners. It's one thing to just get together with someone; it's another thing to develop close emotional ties with that new person and still maintain your love for your original partner.
That's the challenge of polyamory, and Polyamory.com can help. Have a look at some of our many threads, and post any thoughts, questions, or concerns that you have. You can get in touch with some wonderful people here.
Glad to have you aboard.
Love means never having to say, "Put down that meat cleaver!"