Super strange !

Hi! I'm Jessica I've been tracking opks and got a positive last Thursday , BD'd . And now I am having really sore veiny boobs, nausea, extreme fatigue. Like my last pregnancy ! Just out of curiosity I took a opk because I heard that it can sometimes detect a pregnancy and I got a pos opk! The test line showed up before the control line is even darker then when I had tested when I was ovulating! I got a neg hpt but my period isn't due until June 1st . Is there any chance I'm pregnant!?