Red bump pubic area with black head, painful

ive developed a firm red lump on my pubic area since shaving last week, its quite sensitive to touch and appears to have a black head. Any ideas what this looks like or may be?

Any other irritation around the area? looks like a ingrown hair follicle.

hard to tell , but just to the left in that lower left corner, hard to make out that slightly whiteish area

im not sure if thats just my skin haha but what could that mean is it anything to worry about do you think?