I had unprotected sex, with my boyfriend he used the pull out method about 5 weeks ago. Right after I started bleeding for 3 days. I took 2 tests a week after & they result as negative but I have sore nipples but I haven't gotten my period. Am I pregnant?

First I know you understand that "pull out" is the least effective method, in fact I personally don't even consider it a method. It merely reduces sperm since often there are plenty of sperm in the early fluids. ( and normally the boy pulls out late also)

If this is the only method, you do have a good chance of pregnancy.

It is far too early for a pregnancy test,

You will need to wait till the next period and see if you have it or not, if you don't, you wait till it is a week late and then do a pregnancy test.