pregnant after miscarriage

Sh
I found out in the middle of March that I was 4 weeks pregnant. April 7th I was experiencing bleeding so went to ER and everything looked good. I was at 6 weeks. 
I went on April 25th for an ultrasound to learn that bleeding I had was actually a miscarriage. It took care of itself naturally and my hormones were back to 0. 
Now here we are the middle of May and I haven't gotten my period yet. I took a test on Thursday and got a positive. Took a test Friday and also got a positive. Yesterday I got a negative and today I got a negative. 
I'm simply annoyed. It either needs to happen or not happen. I can't handle this in between.