I have milky stuff coming out of my breast and i had sex with my boyfriend last month. can i be pregnant?

Possible : Did you miss a period or are you late? You should check a pregnancy test. If it is negative then visit the doc for an evaluation to find out why you have this problem because it isnot normal

Milky discharge: Your milky discharge may be due to excessive nipple stimulation during sexual intercourse (If this is the first time you are having this issue). You could still do a pregnancy test but if you were pregnant you should not have milk discharge for the first month

Do pregnancy test: and find out. If discharge continues see your doctor.