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I found out i was 5 weeks pregnant in the ultrasound but there was no fetal sak. I talk to my doctor she schedule me other ultrasound when i 7 weeks. results came in the same there was a yolk sak but no fetal pole. all my blood test came out find but the first four weeks when i didn't know i was pregnant i had alot of testing going on that the doctors didn;t check to see if i was pregnant. So i think that had something do that it not showing a fetal pole? I wondering since i have a tilt ulterus maybe you can not see the fetal pole?