Miralax ?

Hey guys I'm going to be 17 weeks on Saturday coming up . And even before I was pregnant I didn't go to the restroom to do #2 . And I would take miralax every once in a while , to clean me out . Do any of you guys take any while pregnant? Or should i wait to talk about it to my Obgyn ? Cause I do have an appointment before the 20th . Like I can wait to talk to her , but any "?" I have that I don't seem to be too worried about I always come here first .