My hcg level is at bit high on 12th week of pregnancy. what does tht mean. do i need to worry abt it?

Need an ultrasound: If you beta HCG is elevated, it may be normal or a sign of problems. A dramatically elevated HCG can be a "molar" pregnancy, which is a very abnormal placenta, usually without a fetus. This would be seen with ultrasound, twins will cause an elevated hcg. Sometimes fetal or placental problems can cause an elevated hcg, and again a detailed ultrasound would evaluate this.