Had an early ultrasound today after a little spotting yesterday. Gestational sac & yolk present but no heart beat yet... my <a href="https://play.google.com/store/apps/details?id=com.glow.android.nurture">nurture</a> calculated due date would be april 1st, but doctor said that given I had a 34-36 day cycle Im likely not as far along as a normal 28 day cycle would make me..

Should I be nervous there wasnt a heart beat yet? Repeat ultra sound next week..anxiety will be high until then.