<human>: Long time lurker, first time poster. I will make this as short as possible. BF and I have been best friends for two years. During most of that time I was with, and even engaged, to another man. Once that relationship dissolved, our friendship grew into something more. Now we are living together. He has four kids and has had a vasectomy. I have zero kids and until now, no desire for children. I'm madly in love with my BF, and all of a sudden my uterus is making me crazy with baby thoughts. Will this go away, or will it only get worse? 

This post follows a night of wine, hanging out with the kids and sister in law. The more I saw him interact with his kids, the more heartbroken I felt, because it will never be my biological children. And man, do I ever feel a burning need for that.

Condense the text into a few key points
<bot>: BF has four biological children, I have zero. I want our own children, but he has had a vasectomy. I love him, madly, truly. But I want his babies. What do???