I am experiencing irregular menstrual periods and side pain. the following also describe me: missed or late menstrual period and vomiting. what sh...

Pregnancy worries?: A urine pregnancy test, done correctly, gives a reliable result 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon, and thus lead to a repeat test. With irregular periods, it can be hard to guess when to test, perhaps at 2.5-3 weeks after sex.