Husband working out and twin pregnancy

Ok so I’m a little competitive with my husband and so annoyed he’s crushing it at the gym everyday. I’m just now 6 months pregnant with twins and trying to workout too, but I’m afraid maybe I shouldn’t be. We’ve had losses in the past so I’m easily scared. Anyway, I started training to keep up. The trainer is trying to take it easy on me but it’s still hard. Has anyone else worked out at 6 months with twins that had a sporadic routine prior so it’s not like I was already in awesome shape. Just ok. Any thoughts or rants about husbands doing this while we just gain🤦🏻‍♀️