Trying not to get my hopes up...

So my husband and I have been TTC for 7 months. I did ovulation tests for a few months and never got a positive result. So I finally went to see my OBGYN and she has me getting labs drawn. I am having my day 23 labs drawn this morning, but my first set of labs indicated that I have PCOS. So I didn’t do any ovulation tests this month since she had mentioned starting me on clomid next month. According to my app I would have ovulated about a week ago. So I am currently at work and feel like crap (I’m a night shift nurse). I don’t know how else to describe it except I feel hungover, but haven’t drank any alcohol since about a month ago. I thought I may have been nauseated because I was hungry, so I ate and it got a little better but not much. And my mouth is super dry no matter how much water I drink. I know that this could be early pregnancy symptoms, but isn’t it too early to be having symptoms? Has anyone else experienced symptoms like this this early? I’m trying so hard to not get my hopes up.