Hello,
A woman can conceive anytime after merina removal. The time varies. It can take few months to a year to conceive once ovulation is regularized after Merina removal. Any unprotected sexual act can result in pregnancy and chances of conceiving are highest during fertile days. It is suggested to wait for your periods. If you miss your periods and continue having symptoms and signs suggestive of pregnancy you should consult a gynecologist. Urine/blood HCG tests may be helpful. A clinical examination may be needed to confirm the diagnosis. This is merely an advice and not a substitute for clinical examination. Keep me posted with more queries. Hope it helped.
Best wishes and regards!
A home pregnancy test usually would be able to detect a pregnancy 3 days after a missed period is due. You could wait and see what happens, or go see your Gp for a bhcg blood test- if that's negative then you aren't pregnant. Good luck.