Foster Parents

So me and my gf decided that we wanted to foster to adopt in addition to having our own child. I have had a miscarriage so she wants to try now because she doesn’t want everything to weigh on my body only problem she has chron and I made it clear to her I will not put an unborn child life before her own? Am I wrong for that? I don’t care if we physically can’t hve our own child, what I do want is my partner by my side. She try’s to make me feel better and say we can hve a million child let’s adopt every two years till we hve a soccer team lol 😁😁