Age / babies / sex

I’m 39 .. Pretty much feeling like I have a year to months to try and have my last baby ... As age is factoring in... My bf always said he wanted one more , I asked him if we could try , in some type of way he said yes ... So I mentioned well you can’t pull out anymore ... sense the talk we have had sex 2 times , pulled out both times , and now our sex life has gotten very minimal ... I’m feeling some type of way about all this . maybe freaking out bc of my age , and needing it to happen or to thinking he just agreed to shut me up about it .. I don’t know .. Just a little more info he has a 10 yr old previous relationship , me a 16 year old previous relationship . Would be our first w one another , and when I did mention him pulling out he said “ huh “ I don’t remember that talk , I said what yes you do how can you not and he kinda smiled did a goofey laugh and so I said ok so again from now on no pulling out ... And no sex sense then :(