maternity shoot booked

Experienced advice needed!!! I booked my Meterity shoot and I'll be just 28 weeks.  But hear me out! I've already gained a lot of weight and think if I wait till after 30 weeks I'll be too huge and hate my pics!! I already look pregnant and my double chin is growing by the week. So for vanity sake I thought I should do it a little earlier. Should I reschedule?? Here's how I look with my the dress I'll be wearing at just 22 weeks!! No, not twins 😩