Implantation bleeding

Just a little help.....last August what I thought was the start of my period turned out to be Implantation bleeding....had no clue since I had never been pregnant. Bled for 3 days a dark brownish discharge then stopped.....2 weeks later took a test and was positive along w symptoms. Keep in mind my periods have always been irregular for years....yesterday I saw the same kind of brownish discharge...hasn't increased or darkened or turned red. And I don't have any symptoms of being pregnant this time around. I haven't had a period since March 2015....I don't like to take tests because I hate to get my hopes up n see the negative :/