Four Months Pregnant with Lap Band

I was told when i was 20 that i would never be able to have a child of my own. I got married at 23 to a man with three children that i have raised as my own. I got lap band to live a health longer life with my husband and our children. The lap band doctor said there is a small possibility that one day it could happen. To be honest i really didnt think it would ever happen and my OB was pretty sure it wouldn't happen there was just to many problems with my body despite the fact that i have lost over 100lbs. It was heart breaking at times but i had finally come to term with the fact that it just wasn't going to happen. My husband and i have been together for five years and we have never really used any form of birth control.

I am almost two years out with my lap band and i was feeling really good about my body again how ever i still had some body issues with loos skin so i had a breast augmentation planed and also a tummy tuck and a few more tucks like arms and legs. I had the doctor planed out and i was ready to go! One night my husband sat me down and said what the hell is wrong with you? I said i dont know i am just getting so sleepy about 12 and its like i just hit a wall and i cant get back up from it. later i went to take a drink of something and just started throwing up, i honestly thought i had just drank to fast and it was a fluke but it kept happening and i thought ok maybe i need to have my band checked. Again my husband sat me down and said maybe you should take a pregnancy test...... I just got pissed at him and said IM NOT PREGNANT. He fought with me for two weeks. One day i went to turn in some stuff at an office and saw the dolor store in walking distance before i knew it i was in the store asking the lady for the dolor pregnancy test i bought three. Went home ready for disappointment but i had something to prove to my husband. i took two of the three test and the control line came up with nothing else something you see when you get a negative test. I was pretty sure my husband would have to say sorry about that after he saw the pic so i snaped it and sent it to him and then looked back at the pic i had just sent. There was a very small pink line. I almost fainted and thought this isnt right and i looked back at the test both of them had two pink lines. i almost died right there in my kitchen.

Any ways right now i am 15 weeks pregnant and i have only gained a pound which concerned my OBGYN. I think that i have gained a lot but every time i step on the scale nothing. i have to go and see a specialist because my OB is worried about my weight, should i eat more? I cant always eat more. Im a little worried i dont want any thing to happen because this is such a blessing to me and my family. any one else have this issue???