Bleeding is very common in early pregnancy, especially after intercourse. You can always call your dr for some peace of mind, but generally, as long as you're not experiencing cramping with the bleeding, everything is okay. There's no general rule as to how long you should bleed for. All pregnancies are different. Some women don't bleed at all & some women bleed throughout the majority of their pregnancies. Good luck to you & congratulations on your pregnancy!
Everything the previous poster said is right on. In fact my doctor had told me that the pregnant cervix is much more likely to bleed than the not pregnant cervix because they can be more sensitive so things such as intercourse can cause bleeding. Also your uterus may have some blood that it need to cleanse from your system. As long as the blood isn't bright red, a heavy flow and/or accompanied by cramping it is normal. I actually bled with both of my pregnancies for the first three months particularly when af would have been due. If you are still concerned the best thing you can do is call the doctor. Best wishes and Congrats!
There's no general rule as to how long you should bleed for. All pregnancies are different. Some women don't bleed at all & some women bleed throughout the majority of their pregnancies. Good luck to you & congratulations on your pregnancy! 
