Exercises during pregnancy?

Smilie • Hello our first baby girl is on the way on the 22nd November 2015... Please be a sticky baby 👼 ✨BD to all
Hey ladies does anyone know good routines to do at the gym to keep me in shape through my pregnancy. 
I used to go quiet a lot but I want to start again and just do a few things to see how I get on. Starting before my 2nd trimester starts as I'm 11w now