Meal replacement shakes?!

Devon

I'm over weight and I'm currently 3 weeks pregnant would it be okay if I used meal replacement shakes to lose a little bit of weight? I don't wanna lose too much and I'd still have health shakes such as fruit and one main meal as anybody else used meal replacement shakes during pregnancy is it safe to use? Is anybody using it currently is it working?

I just don't wanna put more weight on during this pregnancy I wanna be as healthy as I can be