Hello, and I hope I can help you today.
First of all, I want to reassure you that
Flagyl is safe to use during
pregnancy. So no matter what is going on with your cycle currently, the antibiotics that you were prescribed do not have to be changed in dose if you happen to conceive this cycle. Furthermore, in order for drugs have an effect on the fetus there needs to actually be a fetus present, and again if you just conceived there is no way for the drug to have any effect that could cause birth defects are ready other pregnancy abnormality.
Secondly, is unusual to have blood-tinged discharged when you have a
vaginal infection due to the irritation in the upper part of your vagina near
cervix. This is especially true if your do to get your menstrual period soon.
Thirdly, if you were to have
implantation bleeding, it would have occurred within five days of conception, which means that 12 days since your ovulation is not a time that is consistent with implantation. Feeling nauseous is not an unusual side effect from the medication itself.
So in your case, I recommend that you continue and finish your Flagyl medication as prescribed at the original dose. Your symptoms of spotting are likely due to the bacterial infection itself and have nothing to do with pregnancy.
If you desire, a pregnancy test that can be performed over-the-counter would be accurate at this time as at least 10 days of gone by since the theoretical time of conception.
I hope I was able to adequately answer your question today, and that this information was helpful.
Best wishes,
Dr. Brown