Drastically different belly shape one week apart?

Alicia

Hey all,

Just wondering if anyone else sees the difference in these pictures and what it could mean?

Last week my belly looked like the bottom picture (with the white bottoms, 38 weeks) and today it looks like the top picture (green bottoms, 39 weeks)

I feel like it looks so different! I cant tell if baby has dropped yet or not? I'm hoping she has.