Hello and welcome to Healthcare Magic. Thanks for your query.
Thickening of the endometrium is not a definitive sign of pregnancy
, It can be seen frequently in disorders like dtsfunctional uterine bleeding
(DUB) which is a common cause of irregular periods
. Moreover, you mention that you had unprotected sexual intercourse eight weeks ago and have had two periods after that. So, it is unlikely that the endometrial thickening is a sign of pregnancy. I would advise you to consult a gynaecologist for your problem of irregular periods.
Dr. Sheeba Stephen