Pregnancy symptons?

Faith
Alright so I feel like I'm going crazy here.  My fiancé and I have been trying for about 2.5 years now to no avail  we've tried treatments and nothing. I also have PCOS
I've never gotten pregnant and a lot of my AF symptons are similar to preganncy. I know everyone is different but just wondering if anyone ended up getting AF or pregnant with similar symptons. 
Now 7 days my boobs have been sore , yawning a lot, very constipated, gassy, hungry often and crampy. My period is late and I do plan on taking a test Sunday if no AF but just curious what happened to others out there.  
**im also hardly ever constipated