Me late by 4 days on my period trying since 2 months for baby also since a week I have slight abdomen leg and back pain. Also yesterday and today morning I was feeling nauseous as well hungry all the time. Vaginal mucus is thick white. I tested on 4th day of miss period it was negative please advice am worried because in Dec 2017 was my 1st preg I had done dnc because of no brain development. I am on folic acid since 4 month please suggest.