What causes babies to measure smaller then due date? Been fine up until 34 weeks.

I was 155 now I am 182. will see Monday what's going on

my daughter has a 2 vessel cord instead of 3 vessel so I think that's why she's so small (4lb 7oz @ 35 weeks on the ultrasound). but I'm also very small. only gained 10 or 12lbs this pregnancy. I was 110 pre baby.

ok. thanks ladies. my first child. me and my husband been trying far so long he telling me not to worry

don't stress over it BC those measurements aren't so accurate. next visit he will be back on track. I learned the hard way.

Sometimes they are just small. I had low fluid and my son wasn't getting enough nutrients so he was growing really slow. I was measuring really small so they induced me. He was almost 37 weeks and weighed barely 5lbs. But he was perfectly healthy:)