my last period was on Oct. 11th to 15th. I've had sex with my boyfriend on Oct 19th, that's the second time of having sex in October. On November 22nd, I'm supposed to have period, but nope. I had unprotected sex with him on Nov. 18th, 19th, 22nd, 23rd, 24th, & 25th. My Glow calendar is saying that my next period is on Dec 8th or something. I usually have 35 to 50 ish days of cycle. So what do you think? I don't think I have any symptoms, but feeling cramp sometimes. Should I take a pregnancy test? I might be 8 days late according to my <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> app.