Baby Bump - 27 Weeks (a little late)

Baby Bump - 27 Weeks (from last week)

Baby is 14.5 inches - about the size of a cauliflower and weighs 2 lbs

I've been confused for the last couple of weeks on how far along I really am. The last few times we've been to the doctor they have said that the baby is measuring bigger so my dates are off and I'm really due end of April. Regardless of whether that is true - why can't they just go by months rather than weeks? How far along is 27 weeks anyway? Am I 7 months? Almost 7 months? Even though I've done this before - it's still confusing!