I had unprotected sex on Oct 1st  my period was Sept 22-27  Took Plan B within 20 hours . Had pain and stomach problems all week. Constipation and bloating.  I took half of laxative every other night and gas x too.  It is now Oct 24 and still no period . Still have bloating and took ept pregnancy test week ago said positive. Could that be a false positive?  Since I drank alot of water night before with the half laxative.

Could I  be pregnant?  Still having abdominal pains.    I am 46 yrs old. Never had kids.