How early can a fetal pole be detected?

I woke up this morning and when I went to the bathroom there was blood on the tissue when I wiped. I went to the emergency room and according to my LMP, I am 4 wks 2 days. I wasn't cramping any different to the ones I've been feeling off and on since I found out I was pregnant. They had me do an ultrasound and said there was a gestational sac measuring 5 weeks but no fetal pole. My hcg level is 2027. The doc asked me to come back onm Wednesday to see if my numbers are doubling. I am sort of nervous now even though the spotting has stopped. When is the fetal pole normally detected?

[lauraandbill2001]

My fetal pole did not show until 8 weeks.

[bookerswife]

Was the blood bright red?

[DollChina]

About 6 weeks but it varies..
Good Luck

[lhfoo]

It was intitially, then got scanty and dark and also when the doc checked she said there was no bleeding and my cervix is closed.

[gml24]

at my ultrasound i was 5 weeks 2 days and all we could see was a sac.  the next week the fetal pole and heartbeat were there.  i think 4 weeks is way too early to see a fetal pole, don't worry.

[5preg2B]

mine showed at 6.5 weeks

[mommie2]

4 weeks, even 5 weeks is a little early to see the fetal pole. I saw mine at 6.3 weeks. be positive, your numbers look good.

[2wiceblessed]

What is a fetal pole?

[lhfoo]

Thanks, I feel a little more at ease now.

[Agiesmom]

I was told 6 weeks, too, but my doctor couldn't see a fetal pole at 8 weeks--but at 9 weeks, 5 days, the technician saw everything.

[Agiesmom]

Here's what wikipedia says:
http://en.wikipedia.org/wiki/Fetal_pole