Help!

Shannon
So I had my period April 26-29. Had tubal reversal may 12th which brought on a second period may 14-17. Then had period on normal date of may 28th but it was lighter and more brown in color. Now I have had 3 days worth of positive opk tests. Today I almost fainted and have been nauseous all day. bbt has remained steady at 97.6 all month. Could I be prego?