Ugh what is going on with me feeling sick

I've been having a rough month physically.  My last period was rough and the cramps have continued almost through the entire month.  That happened to me once before last summer.  We ttc during my fertile week and at the end of the week I randomly got super nautious for a little over 24 hours with  cramping (different kind of cramps) but no puking.  It went away but now I've been getting nautious after random meals. Now I'm a week away from my period and little to no cramps. My husband is hopeful our ttc worked but I don't think that's it.  I'm just feeling frustrated.  If I get my period & know I'm not pregnant I guess I'll go to the dr & figure out what's going on with me.