When is the earliest i can use a pregnancy test if my period was the 28 april 2014?

Pregnancy test: Most common available over the counter urine pregnancy tests can detect a pregnancy 5 days before your next period. Assuming a person has a regular monthly cycle and the first date of LMP( last menstrual period) was Apr 28, and the person becomes pregnant , then test can possibly pick up the pregnancy on after May 23.

Two weeks: It really depends on your cycle length. You ovulate 2 weeks before your period, so if you have a 28 day cycle your ovulation would be around May 12th, testing around May 26th.