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

### input:
Hi, I am a 25 yr old female. I am in a committed relationship for 5 yrs. I have a couple of questions, Pls assist. 1. I would like to know what if iI and my partner have indulged in an unprotected sex on the firstday of my periods? are there any chances of pregananacy? 2. My periods are regular. Infact i get them 3-4 days earlier than the previous time. But the flow I get is very light. My periods last for only 2 days that also not with a heavy flow. I experience bloting on 3 n 4 day. I would like to know does the flow of periods matter in future pregnanacy. Will I have probs conceiving as we plan to get maried next year. 3. I and my partner had an unprotected intercoure on the 10th (sunday). I have taken an i pill on the 11th. I had previously taken an i pill 4-5 months back like in september. I would like to know whether taking an i pill in such time difference is safe or not? ALSO DOES I PILL OR UNWANTED 72 RESULT IN INFERTILITY LATER OR CAUSE COMPLICATIONS WHEN I WANT TO CONCEIVE. An early revert is appreciated! Thank you. Read more: Birth Control Forum - how safe is an i pill? WWW.WWWW.WW Follow us: @ehealthforums on Twitter

### output:

Hello thanks for your query.1. On the first day of your period, chances of a pregnancy resulting are zero.2. You should have a gynecological evaluation to know the cause of light menstrual bleeding. It could be due to anemia, thyroid hormone imbalance, tubercular infection of the uterus etc. Some women normally experience a lighter flow each month which is of no consequence.3. You should not take I pill casually, it will interfere with your normal period. That said, I pill or unwanted 72 DOE Not AFFECT FERTILITY later on.IT does not cause complications in conception. So wish you all the best. Take care.