Help.. is this normal?

i bin wit my girlfriend 4 2 months and she bin givin me wanks for lyk 5 weeks now so i havent dun it me self 4 5 weeks but yesterday she dumped me and today when i had a **** cuz i was horny listenin to my mum nd dad anyway when i was wankin i felt like i waz bout to *** but blood came out lyk it didnt squirt or anyfin it just came out like a cut or somfin! i really need help pls is this normal? btw im 13..