Is it too early to test?!

Sooo according to glow I have 4 days until my next period and I’m 10 PO. I usually start on the 17th even though glow always predicts it will be the 20th or 21st and I’m trying realllly hard not to test because my heart can’t take it to see another negative test. Also, I have never actually done an ovulation test, so we have been having sex every other day just to make sure and have been going by glow for possible ovulation days. ANYWAY should I wait until I pass my expected period day or would it be ok to test now??

Helpppp 😩

UPDATE 12-22-18

JUST TOOK A TEST 5 MINUTES AGO Y’ALL CAN THIS REALLY BE HAPPENING?!?? 😍😍💖