I had a sex with my gf on 13 may and I didn't realize which comes before sperm in her overy but for clear our doubt I eat ipill unwanted after 4 hour of unprotected sex and I got my periods upto 3-4 days on my periods date which was 21 may but in the next months of periods I got periods on 4 july which was very lighter and then I got second time periods in the same month after 20 days and the bleed was in black for 2 days then in 3rd day bleed was in bit in red color. And I also use preganews and the result was negative. Am I still pregnant? M worry about this? Last night I feel like vomit.