8 weeks pregnant with twins having light spotting had an ultrasound 1 baby heart beat normal the other they see is everything ok?

It is possible to see only one heartbeat at 8 weeks pregnant with twins. This is because the embryos are still very small and the heartbeats may be difficult to detect. As the embryos grow, the heartbeats will become stronger and easier to detect.

If you are concerned about the results of your ultrasound, you should talk to your doctor. They will be able to provide you with more information and reassurance.

Here are some possible reasons why only one heartbeat was detected:

* The other embryo may have implanted later than the first.

* The other embryo may be developing at a slower rate.

* The other embryo may have passed away.

It is also possible that the ultrasound technician was simply unable to detect the second heartbeat.