My Common Bristlenose Issue

Hey guys, just wondering if you could give me any advide on my adult female. I bought her off a breeder 2 weeks ago and she is packed full of eggs. She is huge! the guy i got her off told me that she lays 170 eggs at a time and she does it every 3 weeks. He told me her last spawn was 3 weeks before i bought her so she was due any day. So i put her in my tank and she looks happy as larry. ( or sally because shes a girl =P ). I have 3 adult males. all of which are bigger than her. and all 3 of these males have their own cave that they look very content in and fan their fins all day. The problem is that she is getting even bigger and she hasnt even been interested in the males or their caves at all. She is getting so fat that im worried about her. shes almost as wide as she is long. lol. should i be worried about this or should i just let her sort it out?
-Zane