Ovulation: antibiotics and OCPs contraindicated? Posted: 12-06-06 13:57pm
I recently posted this in the general
forums, however, now I saw that I could
ask a doctor directly and would REALLY
like your input...
[[*summary* i have been on ocps for the
past two years. I was prescribed the
antibiotic macrobid for a uti and started
taking it during the first week of my
pills for five days and stopped taking it
at the beginning of the second week of
pills. The medication was not labeled as a
kind that altered the effectiveness of
ocps and my doctor did not mention it
either. However, I did use a back-up
method while taking the antibiotics and
for two weeks afterward. Yet, when I
started my withdrawal bleeding or "period"
during my fourth week of placebo pills, I
did not use a back-up method.
My question is: could I have ovulated
during the fourth week of placebo pills
because of the prior antibiotic use?]]
just to clarify a little bit...I took the
5-day antibiotics from friday of week one
to tuesday of week 2. So following the
medicine I took the remaining 11 active
pills before the week of placebo pills.
Are the 11 pills enough to stop ovulation
from occurring that fourth week of no
hormonal pills?
Thanks again, I appreciate any advice you
may have.
|
DoctorAnswer
Doctor Answer
Joined: 19 Dec 2005 Posts: 16777211
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Birth Control Answer A1901 Posted: 12-11-06 05:21am
It is possible to ovulate during the last
7 days of the OCPs cycle if the hormones
from the oral contraceptive pills were
somehow blocked... but in that case, you
wouldn’t experience the monthly vaginal
bleeding (the false period stimulated by
the hormones). Vaginal bleeding during the
last 7 days (placebo pills) is evidence
enough to confirm lack of ovulation. If
ovulation had occurred, the yellow body,
created from the ovarian follicle, would
produce enough hormones (estrogen and
progesterone) to prevent menstruation (the
false period).
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