5 months and 14 days post FUE with poor growth

[Aventador]

I've just completed 5 months and a half today and i have very poor hair growth ..the transplanted hairs started to grow at the end of the third month and continued to the middle of the fourth and then it stopped!
Im norwood 5A and transplanted 3200 grafts in the front and mid scalp..
Since the middle of the fourth month to this day no improvement or growth at all! Is this normal?