Is a 30 weeks maternity Christmas shoot too early for maternity photos?

I’m planning for my maternity photos to be Christmas themed, I won’t be taking them till closer to Christmas I just need to start buying our outfits. Is 30 weeks a good time this is my first baby so I have no idea? We’re thinking about asking 1 of the 4 photographers we know personally which 2 are apart of the family. We of course are going to offer to pay them but my sister in law already offered for her husband to take them for free. My fiancés aunt is always wanting to take photos and did our graduation ones and honestly I know she would love to do them and I know they would also be beautiful. Some of our graduation photos were put on a website for the modeling of the shirts we wore so she’s really good. I just don’t know if I should wait longer then 30 weeks and do them more around 32-34 weeks.