I my hairline receding or do I have a huge forehead? (Photos)

To generally determine if someone has a high forehead may be difficult without seeing the entire face since it has to do with proportions. 

You appear that you can come down just a little.  I think predominately it is the shape of your forehand, however.  

It's hard to say without a full exam and getting a full history.  Based on the pictures you sent, it would be exceedingly rare for you to be having the beginning signs of male pattern hair loss.  That being said, you will start noticing hairline starting to go back as you get older.  On exam, something that you can do to help differentiate, is lift your brows and see where the top wrinkle line is on your forehead.  If the muscle movement is going right up to the hairline, then it is likely that you do not have a receding hairline.  Again, a physical exam is needed to be more accurate in diagnosis.  I hope some of this helps.  Best of luck.

Is this  recession or just a large forehead you ask. from the shape of your hairline, I think it is not a receding hairline but to be sure you should lift your eyebrows high so that the forehead creases. A mature hairline will be one finger breadth above the highest crease. I suspect that your finger will actually fall on the crease