<s>[INST] Hi doctor, My frozen embryo day five transfer was on 16th at 1 PM, which was my day six of Gestone 100 injection. Post FET, I was advised to take Gestone injection on 19th, 22th, 25th, 28th of this month. The due date for blood test being 27th. By mistake, I took the injection today which is 18th, a day prior to the prescribed day. What to do? Is it going to affect the result? [/INST] Hi. From your query, it is understood that you have gone through the IVF cycle and Progesterone injection are just to maintain the pregnancy. So it does not matter much if you have taken one day before the scheduled dose. Now, subsequently, you take these weekly, meaning, all the doses one day beforehand the scheduled one. No need to worry. There would be no side effect surely. You be in touch for your pregnancy and have a safe pregnancy. </s>