Help! what do you think?

April

my husband and I have been ttc for a little while now. the last 2 monthes I have had wierd late periods! Well it was a one day brown spotting type of period. I have take a test every week for the past month and keep getting a negative. I keep feeling sick to my stomach, tired and forgetful. im not sure what to think at this point. hoping for that positive result. Anyone experience a wierd (one day- brown spotting) period?