Delayed, short period.

My period was off this month, 3-4 days late and was shorter than my usual 5-6 day period, had no signs of pms (cramps etc). Oct 23-26 And am now having what i think might be IB. Was just wondering if any of you have had an experience like this and what was the outcome or if anyone has an idea of what this might be? Just started today, a light pink/beige color. Thank you in advance ❤️ last times I had unprotected sex was on the 12th&22nd.