Hi, recently I had unprotected sex with my girlfriend like about 4-5days ago. the next day, i realised i had multiple red dots on my penis head, the meatus area. these dots are like pen-mark size or a slightly bigger marker mark size. they are non-itchy and are bright red. my girlfriend had previously had a yeast infection which lasted for a month in which after that it went away. so now the thing is i don't know if these dots are due to burst capillaries or due to the yeast infection or some STD. please help.