Missed period/negative tests

Kayla

Hey y’all! So I have a little girl who is almost 13 months. I had to get progesterone pills to bring back my cycle and it worked I had my first period March 13-19th. I had unprotected sex the 16th, 20th, and 26-27th. Well I still haven’t had my next period yet and I’ve taken a pregnancy test today and it was negative. I’m not sure why I haven’t had my next period yet. I want to try for another baby but I’m not even sure if I’m ovulating now . Anybody have any insight on what could be going on?