Hello - I had an ultrasound on 4th April. The gest sac showed 6 weeks, and a smudge of white in one corner of it. Had a repeat scan yesterday, and gestational sac has grown to 7 weeks, there is a fully formed yolk sac and the sonographer has recorded a fetal pole measurement of 3mm, however she seemed very dismissive that there should have been a heartbeat by this point. What are your thoughts? This is my second pregnancy this year - I had a miscarriage in Feb at 5 weeks - no scans. I am 27 and my husband is 36. Thank you.