weight loss 16 weeks pregnant

[kaybug]

Hi, this is probably a really silly question but its my first pregnancy and I worry about everything! I am currently just over 16 weeks pregnant and trying to eat healthily (probably about the same amount of food as pre pregnancy, maybe more over Christmas). I weighed myself this morning and have lost 7lbs since I was weighed at my booking appointment (8 weeks ish). Should I be worried? I have a definite little bump but don't understand how I can weigh less?! My bmi was slightly high to begin with but I haven't tried to lose weight.
Any ideas why this is happening or am I just being paranoid? Just worried I'm not giving baby what he/she needs.

thanks know im just being paranoid. had my 16 week check up at 15 weeks because of christmas hols and babys heartbeat was fine. just a worrier I guess!

I'm nearly 14 weeks and a stone lighter than the start. Finally getting my appetite back now so I'm sure that will change! Plus my diet was rubbish back then, a lot of empty calories from alcohol which I'm no longer consuming.

Feel much better to know its normal. Thinking about it I drank a lot and didn't eat too healthily so although eating the same amount I'm probably eating less calories. hopefully it means we won't have too much to lose after our babies arrive!