my body is going through so much

Gee
I have been TTC this month.... I'm suppose to get my period today. My body is giving me all the signals that it's coming. Breast are sore, bloated and very emotional lol. I took a test last week and it said it was negative. I also got blood work  and could not find HSG. What's going on with my body ?!? 
I also read that some people can't find HSG from their blood work ..... is this true ?