Help! Hope someone could help on this question...

Filipina

Sorry so long...Saturday I spotted just a little bit thinking I was going to start my period. On Sunday which was the expected day to start. I did not have any discharge all day that day. Monday comes along I did not get my period still, but I did have another discharge thinking today is going to be the day. Still nothing! Each discharge was brown never red. I have never missed a period except when I found out I was pregnant the last 2 times. When I have taken a pregnancy test in the past it showed I was pregnant but I took one today and it showed negative. Last month was our first time trying to conceive again. Has anyone dealt with this before? How long did you wait again to take another pregnancy test? My period should have started on Sunday. I don’t feel stress in anyway and my period has always been clock work. I stopped breast feeding a month ago too. No change in my diet or exercise. So I don’t know what it could be when I got a bfn on the test. 😞😩