Thanks for writing in.
I understand your concern but as of now, everything is normal. The fetal heart can be detected by a vaginal ultrasound
only between 5.5-6.5 weeks gestational age
. So if your child's heart can be detected now, it is normal as your wife is only 6-7 weeks pregnant.
Its fine if the older ultrasound did not shown any cardiac activity. Your wife needs strict bed rest
and a healthy and balanced diet. The rest of the parameters of the child are also normal.
Small and regular meals can help relieve the indigestion
. Please follow up with your gynaecologist. Everything is fine.