I used to take this before but stopped due to the side effects. So I definitely don’t think it’s good to take during pregnancy. The ingredients it contains may harm baby. Naturally, you will gain some weight whilst pregnant too. You could start taking again after you’ve given birth.
I haven’t and I really wouldn’t. The ingredients in it don’t seem safe for the fetus.
After a quick google search I say don’t take it. Talk to your doctor if you think you need to.