Tips for weight-loss

Can you actively lose weight while pregnant? I was about to get in the shower when my husband asked how much weight I had gained so far. I said I don't know. He said well go weigh yourself I want to know. I said I didn't want to and he said well you can start to see it in your face and told me to weigh myself again. Almost in tears i weighed my self and it said 150. I started at 130 and am 26 weeks with our 3rd. I feel like a fat fucking cow now, especially since he was so openly vocal about it. Any tips?