Seven weeks pregnant without seeing the embryo is generally abnormal, but also can not be ruled out that ovulation is wrongly delayed, pregnancy is caused by a short period of time for implantation. 1. abnormal: under normal circumstances about seven weeks pregnant, ultrasound can see fetal heartbeat and buds, if you do not see the embryo is not normal. 2. Normal: the pregnant woman herself ovulation time is wrong, the actual time of pregnancy is less than seven weeks, pregnant with a short period of time, ultrasound examination may not see the embryo. You need to do HCG test, if the rise is normal, you need to wait another ten days or so to go to the ultrasound review. Seven weeks pregnant without seeing the embryo need further examination, once abnormal need to go to the hospital in a timely manner, by the doctor to formulate individualized diagnosis and treatment plan to deal with, so as not to delay the best time for treatment.