Controversial Topic - Chromosomal Abnormalities

I know that most people have ideas in their head as to what they would do if they learned their unborn child had SEVERE abnormalities. My question is this —

If you were told around 14-15 weeks that your child would have severe abnormalities after numerous tests, what would you honestly do? Would you continue on with a pregnancy knowing the baby would not make it? Would you consider the quality of life for that child?

We had a poor NT screen this week and sent off for the MaterniT21 bloodwork which can take 7-14 days. I am so upset by the thought of having to make a choice like this (I’m only 24). I had a MMC last year at 12 weeks and I feel great with this pregnancy (no pain etc). I really thought this would be our big break since I feel so great physically. We have a healthy 4 year old girl.