smaller than everyone else??

Amanda
I know every pregnancy is different, but this is my first and I feel like I'm so tiny compared to all the other moms to be I've come into contact with!! My weight before pregnancy was 180 and then I dropped to 170 and now I'm back to my pre-pregnancy weight and I'm 27 weeks today! My friend isn't due until June and she's HUGE for having just one baby boy. This other girl I know is due 2 days before me and she's also huge with a swollen face to go with it. I haven't experienced any sort of swelling besides occasionally in my hands when it's super cold outside and my feet that I hardly ever notice due to wearing socks all the time. Am I just worrying for nothing?? I feel like I should be much bigger and have more pregnancy symptoms to go along with it.....