adoption/foster care nightmares about non-actually-bad things

⭐️MerFerret⭐️ • Beagle mama • Lupus & Fibro • 🏳️‍🌈 bi
My husband and I have decided that we'll soon be saving up for adoption or adoption out of foster care.
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I keep having dreams about family not accepting them fully (though I've talked to family and they were like: that'd never happen!)
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Even down to dumb things like condescending moms telling me that I need to get that "baby weight" off. Even though I've never actually been pregnant, just a bit curvy.
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I'm not having nightmares about medical or about certain psychological things that may come out later. I'm really good at caring for others, but have some bad self esteem and I think that's where the weird dreams are coming from. I'm afraid of people judging me for not being able to have biological kids even though I'm young. And how that judgement of me may affect my kiddos.
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Anyone adopting or have adopted that can soothe me a little? I don't know why that insignificant part is bothering me.