So yesterday I had my first ultrasound today I'm 6 weeks and 5 days but my doctor said he couldn't see the pregnancy clearly. Has anyone had this issue, I'm scheduled to go back for another ultrasound on monday, the first one was a transvaginal ultrasound,I'm just worried....there's a pregnancy but he just couldn't see it clearly. I've had 4 miscarriages prior to this pregnancy and I was letrozole to try to conceive. if anyone has had this happen and have a healthy pregnancy?