He is some much younger
Every time I see a woman my age pregnant I get the empty feeling in my stomach. All I think about is babies. I shouldn't be having baby fever at 40. To compound things I have a 28 year old FWB. When we have ** I want him to come in me and knock me up. He is gorgeous. We would make a beautiful baby. I recently come off birth control pill to get an IUD and I can't remember ever being this turned on all the time. I have already found myself making plans for a baby. Where to put the crib and baby sitters. When i talked to him about what was going on in my head. He told me he would be my bull. Meaning he would get me pregnant but that's it I guess. I did some googling and found that 7 out of every 10 divorced woman have a baby with a new partner, 3 of those woman's babies will be fathered by a younger man. There are actually websites for these women to get together and complain about the younger fathers. I know I am going to end up pregnant. My subconsciousness wants a baby. This guy is as good as any to provide the sperm.
At 40, this is your body telling you there aren't many more chances. How is your life otherwise? Married? Previous kids? Money? You obviously think your FWB is good breeding stock. Barring other issues, I say ditch the IUD, stay off the pill, and let your lover fill your womb.
You're a prostitute.