<s>[INST] Hi doc.. Me and my spouse planned the pregnancy..not sure if I'm pregnant already because it happened 4 days ago... Do I still have to wait for my period to due before I start counting the days? And what are the chances of getting a accurate result by doing blood tests?? [/INST] Hello and welcome to ‘Ask A Doctor’ service.  I have reviewed your query and here is my advice.You have not mention about the day of period when you did sex. You had sex 4 days ago. If it is 4 days before the expected period date then there is no chance of the pregnancy because it is safe period of the cycle. Pregnancy test will give positive result when your period is missed by 8 to 10 days.So if your period is delayed by more than 8 to 10 days then go for urine pregnancy test and or blood HCG test to confirm the pregnancy. Avoid stress, take healthy diet, drink plenty of water and do regular exercise.Hope I have answered your query. Let me know if I can assist you further.Regards, Dr. Sagar </s>