When to test

BD'ed on the 31st and next period is due on the 13th, do you think it's way too early to take a test now? Been having cramps (different from my usual pms cramps,) more like tightness and some bloating with gas which is also out of the norm for me. (I'm rarely gassy and bloated.) I've also been feeling nauseous a little randomly and idk something just feels a little different but I don't want to get my hopes up. Want to take a test so badly but again, don't want to be disappointed. 😔
I've heard of other women taking test this early and getting accurate readings but I know it's "safer" to wait a little longer. Anyone have experience testing this early and getting an accurate reading? 
Thanks in advance❤️