What's is going on with me!

Ok so for the last three months I have been having spotting one to two weeks before my period is due and march I had really bad period that doubled me over I called my doctors but she didn't say to come in .but now April I had light spotting that started week before my period, then no period when I should of started so I took a pregnancy test but it was false.so now this month may I have spotting 20 days before my period but this time only the days off spotting.ams I took a test yet again only for it to say false. What do I do? I'm so confused and feeling hopeless have been ttc now over a year. Any one know what to do?