What to do...

Past week I've been vomiting without warning. Certain smells irritate me. Sometimes the thought of food turns my stomach and makes me nauseous that I throw up. I took a pregnancy test and of course it's negative. Woke up this morning with heavy nausea I went to the bathroom and threw up. I get to work and my period is heavier than I have ever gotten it!! I don't know what to do.! I take fertility medicines, I take prenatals, I eat right and I make sure I sleep plenty. Still not pregnant. Trying to stay positive