My boyfriend and I had sex about a month ago using a condom and pull out method. This was our first time and I may have gotten precum in me because the condom slipped a little bit up on him when he was in me because it was kinda big. I'm not sure when my period is supposed to come because I'm very irregular but my last one was on March 25th. My symptoms include constipation, a rash, and thick white discharge. I know I should take a test but does this seem likely that I could be pregnant? And are these symptoms of early pregnancy?