OK I may be concerned that I'm pregnant...I had implanition bleeding last week but I ended my period April 29th. I was on my period for 2 weeks and ended april 29th. my periods are never regular due to my cyst. & now this week I have been having some cramps and I feel really bloated and during the night I feel nausea but not really in the morning. & during this week I had like weird gurling sound in my stomach. And these symptoms also feel like period symptoms. I have been feeling really tired and feel like I don't want to do anything but lay in bed. And I also do feel hungry more then usual. My boobs are sore but not too much. I'm very worried because I had a liver transplant when I was 6 months old. I want to know what I should do??