Weight gain. Pregnancy

When i found out i was pregnant i was around 56kg-58kg

Im 23 weeks & 3 days pregnant. Im currently weighing around 73kg

Ive gained so much weight already and havent even hit 3rd term.

I use to go to gym at least 3-4 days a week before being pregnant. But was put on bed rest for 6 weeks qnd lost all motivation!

So havent worked out much, & when i attempt to work out i just get a stitch straight away.

I know its not healthy to lose weight while pregnant, but anyone have any suggestions to help

This is my 2nd pregnancy, my last pregnancy i got up to over 93kg i really dont want to get that big again. Took me years to work it off.