Non sexual exposure

[Ad01]

Hello everyone
Today while driving back home , a guy on a bike met with an accident ,and I went to help him ..
He was bleeding badly .i along with other people there helped him getting up ..and while doing so,some amount of blood from wound on his head came on to my jacket which I noticed after reaching home ....didn't see any stains of blood on my hands or arms though ..
Now i am very worried about hiv transmission
My specific questions are
1.what are the chances of hiv transmission
2. It is always said a lot of blood is required for hiv to be transmitted and as I said he was bleeding quite badly from his head at that time ...so does this increase the chances of transmission
I would appreciate if the experts here reply
I am very very worried ..
Thanks  

[Ad01]

Thanks a lot sir
I truly appreciate

[Teak]

You never had an exposure.

[Ad01]

Thanks u so much for replying sir
But what would ur specific answer to my situation

[Teak]

HIV is transmitted by;
Unprotected penetrative anal and/or vaginal sex
Sharing works with other IV drug users
Mother to child