Hi,
I have understood your concern.
Since your menses are irregular, It is likely that you started menstruating during or immediately after the intercourse. If there was long gap between the last
menstruation and this one, it very much likely that the bleeding will be heavy and may be with clots.
The bleeding due to trauma inside the vagina usually comes out immediately and hence does not have any scope to clot. Usually when the bleeding is with clots, it is from the
uterus.
However, please report to your Gynaecologist to confirm that there is no intravaginal trauma. Also he/she will evaluate you for the irregular menses and also will give you medication to stop the bleeding.
If it is intrauterine bleeding, use of
Progesterone for few days will control this bleeding. After discontinuing the tablets, again the bleeding will start, but it will be less.
If there is any trauma inside the vagina, it may require repair.
I hope I have given you satisfactory guidance.