Period is due today..

Olivia • 01.28.19👶🏻10.03.20💍Mommy to 2 angels👼👼Hoping for #2🤰🌈
Still nothing. I've been pretty bloated the past 2 weeks or so. About a week ago I had some on and off spotting, but it was literally just spots. I've been having constipation. But I just figure it's from not exercising enough/eating nutritiously. Haven't been feeling nauseous or anything, but I think I've noticed an increase in the urge to urinate, increase in thirst, I've been having back pain (but that's not unusual for me), and my nipples hurt SO bad, not my boobs, just my nipples. As far as my moods, I feel like a rollercoaster(but I've also had this as a PMS symptom before though). Any opinions? Or any suggestions as far as testing? Any certain tests to use in particular or are they all pretty accurate? And should I test now or should I wait a few more days?