I agree with you that this dream should be taken from a spiritual standpoint and not literal. The birthing could be a business idea, something creative or ministry. I believe the Lord is giving you caution that it will not be smooth sailing in the beginning and you will need to determine with your husband whether or not you should continue with it. As with a natural birth, this will require nurturing and your time.
You need to both pray it through once God reveals to you what this baby is and I don’t believe He would want you to abort the idea so a prayer for the solution to the issues that will come up will be the best approach.
I hope this helps.