When are you having another? I hate that question!

Lifeislovely • Mommy to one gorgeous boy and three angel babies. Getting ready to have my rainbow baby girl in February 2021.
I hate when people ask me when I'm having another, or worse "Do you want more". When someone who is merely an acquaintance asks it is uncomfortable.  I don't want to say, "I'm trying, but it hasn't happened."  That would just be TMI and would be incredibly awkward.  I just don't have a ready response for this.  Although I would love to say "Yes I want more.  Would you care to hear about my miscarriages first or the infertility issues?"
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Then when it comes to my mom, or my SO's mom it's just as bad.  His mom and mine both want us to hurry up and have girl.  We have a five year old boy. I've been pregnant one time since I had my son, but it ended in my second miscarriage.  The first was before my son was born.  It was bad for many reasons, one of which is that were both already getting baby gifts for us in the first trimester.  I hated having to tell them that we lost the baby.  Now we still get asked why I'm not pregnant yet.  His mom and my mom never experienced secondary infertility.
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How do you handle this question?