Pregnancy symptoms or something else

Courtney
Posted earlier on too- I've got pcos and had a HSG test on cd59(doc said some get pregnant after having one done), now cd67.
I've had achy hips, a lot of nausea, and been sick in mouth a lot last week, heartburn, really tired no matter how long I sleep, and the last couple of days when BD with my partner both have noticed I am a lot tighter then normal when looked online read this is a sign of pregnancy too. 
Think I'm going to test tomorrow morning. Really nervous as been trying since December 2013. 
What do you think possibility is or do you think could be something else? 
Thank you in advance :)