Personally, I think it is hard to get sizing down on a non-adjustable pouch when you are pregnant. Also, it may not fit immediately post-partum since you still carry quite a bit of pregnancy weight after giving birth. If it does, you may find it eventually too big. It's the luck of the draw.
You are already in the middle of your pregnancy so you probably have a considerable bump. There is a chance that the pouch you have could fit once you give birth. Your baby will be cuddled and snug in a pouch and be about belly button level.
Try measuring the top rail measurement of your pouch. It should be 24". Although, there may be some variance since these pouches are made by human hands.
You are already in the middle of your pregnancy so you probably have a considerable bump. There is a chance that the pouch you have could fit once you give birth. Your baby will be cuddled and snug in a pouch and be about belly button level.
Try measuring the top rail measurement of your pouch. It should be 24". Although, there may be some variance since these pouches are made by human hands.