constipation. 16 weeks 2 days. I really need help.

I haven't used the bathroom in 2 weeks. I hate talking about this stuff but I don't know what to do and I don't know if I can take it anymore. My doctor told me to take murilax and colace in the beginning of my pregnancy. Well it hasent been working latley. And now I'm in such discomfort. Please help me ladys. It's been 2 weeks.