Hey My Name Is Heidi I'm 21 I Have An

Hey my name is Heidi I'm 21 I have an 16 month old boy and I recently have been feeling dizzy and I have sore Breast and from my right breast I'm leaking fluid like if my milk was about to come and I been having inter course with my boyfriend and we been using the pull out method is there a possibility that I could be pregnant i also fotgot to mention I had my period like 12 to 14 days ago does that matter or could it be something more serious