Sick Mommy 😞

I have been constipated due to all the meds I have been taking lately , this morning I tried to take some milk of magnesia and I literally threw it back up in a matter of MINUTES ... I don't know what to do I have heard that's really the only safe Laxetive to take during pregnancy . I have been eating high fiber foods and even taking colace per the doctor and can still get no relief 😞😞😞 HELP