Sexually active spotting 10 days after intercourse 14.05 -18.05 pregnancy tests negative, swabs clear for infections, what's the chances i could be?

Repeat the: pregnancy test a week after the missed period if you have taken earlier than that .If it comes negatve that means you are not pregnant. If your periods are irregular take a test 3 weeks after your last sex or take a pregnancy test every week until your next novel.

Could be what?: It's a bit difficult to interpret your question b/c 14.05-18.05 could represent days spotting or 4 negative pregnancy tests. Assuming that you're worried b/c you engaged in unprotected intercourse, pregnancy tests won't turn positive until you've missed your period. Since you didn't mention your last menstrual period, it seems that you'll need to wait a bit longer before re-testing.