Ladies do you see anything??!!

Denise • I am 23💁🏻 Married💑 mother to a Beautiful daughter🎀👑 hoping for our Rainbow baby🙌🏼🙏🏼
Idk what to think.. I'm so sad... I posted a few days ago because on the 7th I took a test and got a negative but I re tested on the 9th and at first it was a negative but I came back to check it a few hours later and there was a 2nd line!!!! (But the change happened way after 10 mins) and i tested today again and I got another negative... My period comes every 21 days I've been tracking it since January and that is the pattern I've been having my last period was on March 3rd and my projected period was supposed to come on march 24th but it didn't and then it projected it to come on april 3rd and it didn't and then it was supposed to come again on April 10th but it didn't... So I'm not sure what to think... I had a miscarriage in Oct so we am were really hoping this was our month... How late should I say I am since I missed my period 3 times from what Glow projected...