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

### input:
Hi Doctor, I am 20. Had unprotected sex on Saturday evening, waited until Monday evening to consume Postinor. Was on the 14th day of my cycle when intercourse happened but waited until the 16th to get the pill. I was wondering, could I be pregnant? Could you please explain about fertile phase and ovulation? And what will happen when sperms are present (because sperms can live up to 5 days, correct?) Appreciated it so much because I am quite anxious as I m currently studying in college. Thank you.

### output:

Hello dairy understand your concernOvulation:If you have regular cycle of the 28 days then ovulation is occurred on 14th day of the cycleFertile phase of the cycle:Generally 10th to 20th day of cycle called fertile phase of cycle. Sperm can live in the female genital tract for the 5-6 days. So if sexual intercourse is done in these days, there is chance of the pregnancy. Sperm that live in the genital tract meet the ovum that released during the ovulation and cause fertilization. You have posting 2 approximately after 2 days. It is effective in preventing the pregnancy around 70-80%. So there may be some chance of the pregnancy as you have sex in the fertile phase of the cycle. Postinor 2 also cause delay in the period by 8-12 days. If your period will delay by more than 12 days then go for urine pregnancy test and or blood Chat Doctor to confirm the pregnancy. If you will be pregnant then still you can terminate the intrauterine pregnancy by abortion pill under the advice of the gynecologistMeanwhile avoid stress, take healthy diet, Chat Doctor. 