Aspirin in Pregnancy

Hi Mum's Wanted to check if anyone was prescribed aspirin during their 2nd trimester to increase blood flow to the placenta? Any advises on this as I was told in the fetal scan that there is a notch seen in my right and left uterine artery hence aspirin was prescribed so that blood flow to the placenta is proper and that in the later trimester it can minimise the risk of fetal undergrowth..can anyone share similar experiences?