Hi everyone,
am new to mumsnet so please forgive me if I get anything wrong 
I'm 39 years old, 20+5 in my first pregnancy and have antiphospholipid syndrome and type 2 diabetes.
I am having scans every four weeks and my consultant at St Thomas' was concerned re: bilateral notches on my placenta and recommended that my local hospital carry out a doppler at 20 weeks. This was done at 16+5 and showed no notches - so apparently good. Had my scan at 20+5 today, the sonographer didn't seem to do the doppler (nothing on the scan notes), the rest of the scan was absolutely normal - my question is, if there were no notches at 16+5, can they develop later? The sonographer at the 16+5 indicated not, but I just want to be sure. didn't realise until I got home that the doppler wasn't carried out today - next scan is in 4 more weeks.
Thanks :)