Please help. Could I be pregnant?

I'm 17 and the guy I am with has recently turned violent and agressive, he was living with me but I have sent him back to his moms house 100 miles away. My boyfriend and I have been sleeping with each other usually protected (condoms) until' 5 weeks ago. I am now bleeding but was 3 and a half weeks late. It doesn't feel the same as my period would (as strange as that probably sounds). My moods are constantly changing and go from all extremes quickly. I feel different in myself. How likely is it I am pregnant? I havn't taken a test yet but am planning to as soon as possible.

[Clysta]

Anytime you have sex pregnancy is possible. Symptoms unfortunately don't really tell much. The only way you're going to know is by taking a pregnancy test with first morning urine.