ok first thing you need to do is reeelllaaaxxxx!!!!
next thing dont start thinking of the what ifs till you've had it confirmed!! us women have crazy bodies and can make us think things are there sometimes when there not.
once you've had it confirmed,make sure you take folic acid straight away 1 tablet every day....and eat a healthy balanaced diet.
believe me i know how your feeling hun....when i first found out i was pregnant i was thinking omg im gonna loose the baby at every twist and turn im now 37+4 weeks and it still runs through my mind.
with this being my first child i cant really comment on how to cope with a 1 year old and a pregnancy....but i am a nursery nurse and iv coped very well with the younger children while i was at work until i went on maternity leave. best thing i would say is try an explain as much as possible and make your first child as prepared as possible for the new arrival....it may be difficult at 1st with her only being 1 but thinking about it as the end of your pregnancy draws near your daughter will be nearly 2 and maybe more capable of understanding
good luck hun
kelly and pink bump x