From just over 5 weeks, see the associated website I had my first u/s done at less than five weeks I was probably 4.4 weeks, but all I showed was the yolk sac and the sac....no fetal pole or baby. == an internal ultrasound can detect a pregnancy much sooner than an external ultrasound, even if all it detects is a yolk sac.....there would not be a yolk sac if you were not pregnant.
Yes, a pelvic ultrasound may not be able to detect a pregnancy for weeks after conception. Urine pregnancy tests are the typical first step in diagnosing pregnancy.
no blood test can detect pregnancy with in 7 days and an ultrasound can not detect pregnancy until 3 weeks lmp. no blood test can detect pregnancy with in 7 days and an ultrasound can not detect pregnancy until 3 weeks after conception 5 weeks lmp
Typically after five weeks an ultrasound can detect pregnancy. Although you may not be able to see the heartbeat, you may see a thickening of the uterine lining that indicates pregnancy.
An ultrasound may be able to detect multiple embryos as early as your third week of pregnancy; However, the ultrasound will be most reliable at detecting a multiple or twin pregnancy at around 6 to 8 weeks.
14 days after sex.
Very good question! I do believe it can, but I am not positive.