12 weeks on Sunday and don't feel pregnant

Daniella
Hi girls I'm 12 weeks pregnant on Sunday Iv not really had morning sickness just been really tierd at work. With both my other children I felt pregnant felt like crap just knew I was pregnant. Bit worried as scan on Tuesday just worrying that my HCG levels are going to be low nearly got through 1sr trimester still don't cancel out miscarriage though what ya think girls?