Have a lower lump on the left hand side of my stomache, very tender and bout the size of a golf ball, more noticeable when laying down. I had a scan at 11 weeks 1 day and showed baby moving moving about with a health heartbeat. The van showed some blood in my stomoche, so I was told everything is ok at the momemt, I have my 12 week scan in 6 days. Should I be worried? Has anybody else expreicend this?