Indoor Yikes, lol

[420Jimmy]

My 1st auto grow and am at the final flush phase. I watered tonight and poured closed to the main stem. I let the water settle and noticed this about an inch below the normal medium surface. So this was BELOW the surface and for ref it is about an inch long. View attachment 151524

I am new to autos and indoors but have a few outdoor grows. Sure looks like a POLLEN SAC to me.
I checked both of my plants and found nothing else. What do yall think?

 

[elite]

looks like a pollen sack to me too, had the same thing happen to a pineapple express on my 1st grow it got 2 pollen sacks on each of the 2 lowest buds i just got rid of them and no fertilization occured,
**edit sorry didnt realise what you ment till i read it again mine didnt grow below the surface of medium in which they were grown