Re: precautions in first pregnancy
Yes, there are very few diseases that show a false pregnancy positive. You should make an appointment with a gyne. Have you missed your period? You should be more than 5 weeks pregnant if you are having pregnancy symptoms like vomiting, cramps etc. Little cramps are normal. If you vomit too much and feel sick, go to the emergency room again. Mention this to your gyne too when you go to see her and see if she will give you any medicine to stop you feeling so sick.
Congratulations!! and good luck