Hey ladies. I'm just a little worried that something may be wrong. I had sex in my ovulation week and then my period came earlier which never happens. I'm spot on every month. My usual cycle length is 28 days. Started spotting on the 18th... 11dpo. Never got to a heavy flow, pinkish brown. It stopped on the 20th.Never had to use a tampon or pad that's how light it was. My period was supposed to start the 21st. I don't want to get my hopes up. When should I test?