NT at 3. 2 and 2. 3 when done twice.

My wife is 34 yrs now. This is our 2nd pregnancy we have one daughter 10yrs age and she is good 3 NT scan done as below. 1. On 12 week 5 days and got NT value 3.2mm. 2. After 2 days on 13 week we repeated  got NT value at 2.3mm. 3. Again Dr. Said to get 3rd opinion and after 2 days on 13 week 2 days we repeated and got NT value 2.1 mm. Reports attached. Also gave sample for double marker test during 1st NT scan on 12 week 5 days and Trisomy 21 indicated high risk value of 1:201. Doctor said to get NIPT test done and if it indicates low risk them also get early anomaly scan and if everything good continue. If NIPT indicates high risk them get amniocentesis done to get correct result. Shall we go with NIPT and continue ?? 2 years back she got aborted as double marker was at high risk and also in 4 month scan indicated baby head circumference was less.