Am I just being a typical emotional pregnant lady?

My parents will be in Florida right around the time we're expecting to have our little girl. My dad is leaving tomorrow and won't be back until April or may, and mom is leaving the week of christmas. I understand why they're going, but I'm upset that they won't be here. I'm kinda feeling like an afterthought, especially since my mom's part was planned with the idea of the baby coming on her due date of Jan 4. Baby is coming in 2-4 weeks, by the 28th at the latest, so I'm sure my mom won't be here. It's the first grandchild for the family too so I just don't get how they're not phased by this at all. Do I have a right to be upset by this or is our just pregnant emotional rage?