If you have a seizure while pregnant you need to go to a hospital. Your doctor will give you medications that are safe for the baby. It can be dangerous without medical attention.
actually my wife & i heard the baby heart beat @ 6 weeks and 2 days threw ultra sound! and she is not very thin she is average about 150! 5"2. Honestly if you dont hear a heart beat by 7 weeks...
It depends, you may get it as soon as 4 weeks after, or it may be many months particularly if you are completely breastfeeding. You can get pregnant though as you ovulate two weeks before your period.