### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi, I am 29 yrs old and have irregular spotting as in the spotting starts about a week or two before the actual bleeding. However I have periods every month same day without fail. We are trying for a baby. I was suggested to take duphaston on 14th day of cycle for 10 days, and I have taken 7 so far, 3 are still to go. I have been having slight pain in my breasts for a few days won t necessarily say that I have sore breasts( Had a pregnancy earlier which was terminated so i know there is difference between sore breasts and pain in the breasts). I took a home pregnancy test whicChatDoctore out negative. I don t have any other symptom besides pain in the breasts. So what I wanted to ask was is it possible that consuming Duphaston can interfere with the home pregnancy test? Is it possible I could be pregnant and what is the ideal time to try a pregnancy test while on Duphaston and even otherwise? My periods begin on 11th of the month and i was advised to have sex between 19-30th to improve my chances of conceiving.

### output:

Hi there, My opinion after going through your question is:1) Phaeton does not interfere with pregnancy test results, but can cause sore breasts.2) Home pregnancy test comes positive ideally after 3 to 4 days of missed periods.3) You still have a lot of days before you can get a positive test.4) In case you want to find out earlier, you can get a blood test called serum beta Chat Doctor which can give a positive result by 3 to 4 weeks of pregnancy.5) However, my suggestion to you is to wait for your periods to be missed and get a urine pregnancy test done after 3 to 4 days. If that is negative, you can get the blood test done. I wish you all the best.