Just been for a second scan. I went in at 5weeks because I had spotting. They measured me 5+3 which was right with when I know I ovulated. This means I should be 7+3 today. The sonographer did it abdominally first and said she could see a flicker but wasnt sure if it was a blood vessel so then tried internal. Saw the heartbeat but measured 6 +6. Bit worried about it. Anybody else had this?