A short delay with light spotting after stopping Krimson can happen with PCOD, since cycles stay irregular even on treatment. But since you did have some intimate contact, a
pregnancy test is the first step, because an early pregnancy, including a miscarriage or an ectopic pregnancy, can also show up as light spotting like this.
Next Steps
Take a home urine
pregnancy test now. If it's negative and a normal flow hasn't started in 3 to 4 days, repeat the test and see your gynaecologist to also have your PCOD treatment reviewed.
Health Tips
See a doctor sooner if the spotting turns heavier, you get one-sided pain, or you feel dizzy or faint, since these need urgent checking.