Concerned for my baby

Hello all! I have some questions! I know I should probably ask my doctor and I will! But my appointment is not for another couple weeks or so. ANYWAYS

I have had 2 previous miscarriages. We don’t know why, but I’ve done a lot of research and I know one of the reasons might be because the chromosomes were off and my body recognized that and decided to terminate the baby.

My question is, if it was a chromosomal thing could it happen a third time? The reason I ask is because I as soon as I found out I was pregnant again I got some progesterone, which should help me not miscarry. So, if the chromosomes are off again, but I’m on progesterone, #1 Can I still miscarry? #2 Will the baby have “problems” if I can’t miscarry? #3 How early can you test for that kind of stuff?

Thanks for reading!