Ow . . probably because you can't keep much down it wouldn't be helping your bowell get the fluid and fibre it needs. Ask your pharmacist again if there's anything else you can take safely - pharmacists often know more than Dr's about this kind of thing usually - does anyone know if they can do a gentle enema if things are really bad at this stage in preg?? I would ring and ask your Dr - 2 weeks is far too long.