If your placenta is in the front you may not feel much of anything. Mention to your dr and next ultrasound mention to tech and ask the. Where placenta is. Does not cause an issue usually they are in the back but occasionally and with me they go in front so like a big balloon between baby and you. But if it is expect to get sent to be checked more later on cause if you have an issue they always ask if the baby is moving and since I never felt her so much I always got sent to L&D to be checked.
I didn't start feeling movement till 4 months, but it felt moe like gas. then 5 months you can feel a little on the outside of your belly.
Depends on your definition of plus size.
Over weight women tend to feel the babies later in pregnancy.
But the general time is 18-20 weeks.
If you don't feel baby by 24-26 weeks phone doc.
I guess within those couple of weeks