The Last Eunuchorn

Quick question: do many people think that Dany is pregnant during ADWD? I know she seems to show symptoms of miscarriage during her time in the Dothraki Sea towards the end of the novel, but I also just noticed that in Daenerys I, ADWD she reports experiencing a 'metallic taste' when drinking wine. This is a symptom sometimes reported by women in early stages of pregnancy. Has anyone noticed other incidents that might suggest pregnancy? Sorry if this has been discussed elsewhere.