Unprotected sex during my period

Hey everyone,

i am 22 years old, my bf and i arent exactly ttc but we arent NOT trying either...i am just wondering a few things..I began my period on Dec. 27th 2011 and had unprotected sex with my bf on the 29th he came inside of me 3 times that day. My periods are usually 3 to 4 days long but i believe it lasted an extra day this time but very light at the end (which is normal). We proceeded to have unprotected sex everyday for about 7days afterwards, however he pulled out everytime. I know the pullout method is not guaranteed either. My question is what are the chances that I conceived during the last 2days of my period? All last week I was getting an excessive amount of clear/white discharge. I am now experiencing a little fatigue, some cramping on and off as well as my breasts being sore on and off and i am extremely horny! My next period should be coming around Jan.26th or 27th. When is a good time to take a pregnancy test?