Duphaston or morning sickness

Nausea,vomiting and GI upset can be the common side effects of Duphaston, but it can coincide with your morning sickness too. Sometimes the nausea might wear off as your body has already gotten used to the high level of progesterone in your body. No worries. :) Weight gain is unlikely unless it is for a long term, but it might cause water retention but you can alleviate it by reduce salt intake and drink more water. :)