Hello, Thank you for writing to HCM, There is always risk when you have unprotected sex. But bleeding while having intercourse is normal thing which happens mostly. So, no worries here. I had gone through your query and i would like to suggest you that in your case it was 1st day of bleeding while you have unprotected intercourse and on fifth day she started bleeding so its nothing but the cycle of periods nothing else as on your description. Bleeding in normal intercourse might because of rough sex or might because less amount of pre cum in vagina. for that i would like to suggest you to go for intercourse go for foreplay and Oral sex first before you go for intercourse because it will help for pre cum and also you and your partner will have more pleasure than normal intercourse. Even your sex desire will increase because of that and for more you may have to use different position of sex. It may gives you more satisfaction and even more excitement and total pleasure than normal intercourse. Still if you had any queries you may concern a good doctor for more help, they may suggest you better. Hope you will find it helpful. Thanks & Regards, Dr. Gaurav Prajapati