Hello,
I am very sorry that you have found yourself in this situation. Have you tried a home pregnancy test yet? It is a bit hard to say whether you are pregnant, are you having any symptoms? Nausea? Needing to urinate frequently? If this was your first time having intercourse then the bleeding a couple of days later could just be related to that, I think that your best bet is to do a hpt at least then you would know for sure.
Let us know how you go, there are many supportive women here who you can talk to.
Take care