Gaining a lot of weight in 3rd trimester?

Olive 🦋 • Wife, writer, stay at home mommy to Luna Violet and Kodiak Sage 🌑🐻

I've been eating very good and staying active, yet I seem to be gaining much more weight. I've been to my doctor every week for three weeks now, and I have been gaining 2lbs in just a week! Before my 3rs trimester it was only 3lbs in a month. My doctor is not concerned at all. I just feel like I'm becoming a whale.

Anyone else gaining more in their 3rs trimester?