had to go to the ER today I was very dehydrated and potassium was low they did an ultrasound on the…

had to go to the ER today I was very dehydrated and potassium was low they did an ultrasound on the baby and they said all they could see was the sac because the baby is to little.... even after they did the ultrasound I'm still a nervous Wreck because I keep feeling sharp pains on and off in my vagina .... they didnt seem to concerned but it just makes me worry constantly...... also during the ultrasound they couldnt find my left ovarie and when they finally found it it was behind my uterus.... how weird is that ? but they said its nothing to worry about