Thoughts please

On my ovulation week was centered around November 1st ovulation, hubby and u dtd 3days before and 2 days after but not on November 1st. So my "period" comes 2 days early and is spotting for 4days... no biggie my period is relatively irregular. BUT my moodiness and nausea and smell sensitivity have only persisted. (Normally its gone by day 2 of AF) I have a 15mo and my milk has changed taste because she wipes her tongue after nursing lol and suddenly milk is nearly gone. My DH notices my cervix is suddenly closed. And i noticed a week ago it hasnt come lower yet.