Hi,Dr. my wife missed her period from last 17 days acctual date is 16 th may ,last saturday 12th day appeared dr. but test is negative with sonography,Dr asked for waiting for week of it is late possible ,but today 17th day we done home pregnancy test on morning still negative result ,last two days she getting light bleeding spots ,it is very stressfull and confusing what to do? please advise us.What step is ahead either wait for more week and waiting for period comes out?Is right go for blood test?