Thanks for consulting. I have carefully worked through your case, and I can realize your health worries. Being your physician, I assure you not to worry as I will take care all of your medical concerns. some times delay in periods do happen due to some hormonal imbalance. so it is better to wait for some more days. if you suspect pregnancy better take a urine pregnancy test. the UPT strip will be easily available. some times premature ejaculation can happen without orgasm resulting in pregnancy that is also a possibility. Hope it helps. If you need further, detailed and quick assistance related to any health issues in future, feel free to ask me a question directly from my profile. Have a wonderful time ahead. Best Regards! Dr. Arunmozhi varman