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

### input:
Hi Doc, I had unprotected sex on Nov 15 night. I took the 2 tabs of postinor 2 at once on 17th mid day. I was expecting my period on the 17 but they were late and came on 21st and ended by 24th.I had sex with a condom on 29th night but it broke so I took the 1st tab of postinor 2 at midday and the 2nd tab 11 pm before I slept.1. since i have taken 2 postinor doses within 2 weeks, will they be effective?2. My periods delayed in my previous cycle, does it mean they will delay again since Ive taken another dose of postinor 2?3. How does taking postinor 2 affect ovulation? will it delay my ovulation?

### output:

Hi, Thank you for choosing Chat Doctor .1. Since I have taken 2 posting doses within 2 weeks, will they be effective? Yes it will be effective.2. My periods delayed in my previous cycle, does it mean they will delay again since I've taken another dose of posting 2? Some amount of change in period can be expected, which is absolutely normal.3. How does taking posting 2 affect ovulation? Will it delay my ovulation? Levonorgestrel emergency contraceptive pills prevent pregnancy by preventing or delaying ovulation. They may also work to prevent fertilization of an egg by affecting the cervical mucus or the ability of sperm to bind to the egg. Levonorgestrel emergency contraceptive pills are not effective once the process of implantation has begun, and they will not cause abortion. Please ask if you have more questions. If you are satisfied, please make sure that your ACCEPT my answer so that I receive credit. Good luck!!