I installed a package on 4-22-17. I used 7 frames out of 10 of drawn comb with the outside frames being capped honey. Our weather has been rainy and cool for the most part. I put a second brood box on a week ago which also had 7 frames out of 10 of drawn comb. The weather was nice today so I opened the hive to check on it and it seems to be doing well. A few bees were starting to move into the second brood box so I moved on to the lower box. There was still a frame that was just beginning to be drawn. Pulled another and I saw capped larva, larva and eggs........but I also saw what looks to be a swarm cell on the bottom of one frame. I held the frame up high to look in the bottom and there appeared to be a larva in there.
Will a new package swarm? I didn't think I had much to worry about with this hive since it was new. Any advice on what to do at this point?