Should I take a pregnancy test?

So I 
 onfirmed ovulation on 9/5/15 with an OPK. I think I actually ovulated around 9/3-9/4 based on symptoms. Over the last week I have been nauseated, my breasts are super swollen, low abdominal cramping and a lot if watery CM. I had my IUD out on 8/13/15. Today I took an ovulation test again just to see if it went completely negative and the test light is brighter than the control. I know ovulation tests can pick up on HCG as it is similar to LH in chemical make up.  Not trying to one of those too hopefully TTC but whats going on in my body hahaha? My period is due 9/22/15. Should I take a home preg test? Anyone elae ever experience this? Help help hahaha.