Pregnancy Scare

Rochelle
I'm in a very odd space and I really don't know what to do.
My 15 week test was high increase for EVERYTHING. Including trisomy 18 who's life expectancy rate is 3 days to two weeks but in all babies possibly won't live s full year. 
I was asked to undergo amniocentesis on Tuesday 04-04-17.
This can put me at risk for preterm labor and or needing a cerclage. I'm only 16 weeks and 1 day.
I was also asked to consider terminating my pregnancy if these results are confirmed.
I'm just stuck in a zone.
I'm very much hurt and I really don't know what to do... 
Has any of you been faced with anything like this. Please I need any Type of encouragement. This will be my first child. I'm praying hard that my baby will make it.