Brief Answer:
yes,
pregnancy usually occurs before the implant
Detailed Answer:
Hi,
Thanks for the query.
I understand that the lady has had an implant inserted and is now having a period and the pregnancy test is positive. This is indeed unfortunate but not impossible.
There are few possibilities:
1. She was pregnant before the implant was inserted. Sometimes the implant is not inserted on the first day of the menses. A backup method of
contraception is advised in such cases for 7 days after which the effect of implant begins. If no contraception is used in the first 7 days, pregnancy is possible. The bleeding may result from
abortion or
implantation bleed.
2. It seems that she had an abortion earlier: Sometimes the abortion is incomplete and a few products remain inside the
uterus giving rise to bleeding and positive urine test.
3. false positive test as may happen due to problems with test kit, use of certain medicines, certain tumors like lung
liver and many other rare tumors [She is too young for them].
Check if the hair growth medicine causes a false positive.
I suggest that you repeat the test with a morning first urine sample. If it is positive, get an
ultrasound done to look for pregnancy. Ectopic pregnancies [pregnancies in locations other than the uterus like the tubes and ovaries may occur while on birth control]. The ultrasound will help in confirming things.
Hope this satisfies your query.
Thanks for using HCM.
Feel free to ask any more questions that you may have. I will be happy to help.
Dr Madhuri Bagde
Consultant Obstetrician and Gynecologist