I had sex about 6 and a half weeks ago I am on birth control but wasn't regular the day before but took it the day of. i also took plan B about 5 days after. I had a 6 day late period for a time of 4 days it was heavy. Since my period I have taken 6 pregnancy urine tests 4 at home 2 at doctors all came out negative I took the last one last week. I have a bloated stomach last few days and I am just getting over a bladder infection. I haven't had any breast tenderness unusual cravings or fatigue or anything early symptoms. I don't want to be pregnant and my doctor plus 2 walk in doctors said its very unlikely but I still find ways to think I am ( freaking myself out ) so the question is, could I possibly be pregnant after all of this?