Your metabolism gets faster when you're pregnant,don't worry,it will catch up to you!! So unless you are really underweight don't worry ;-)
In the first trimester my weight would go and down on weekly basis as far as 3-5 lbs. N second slowly but surely I be started gaining. It us OK as long S u r eating healthy and taking prenatal vitamin s
Im also 13 weeks, went to the doc today and had lost 5 lbs...dont know how i eat like a horse.
It depends if ur over weight under weight normal range. Its ok to lose in first trimester u should start gaining it second.
Maybe drink an Ensure supplement.