Could it be?! I don’t want to get my hopes up..

Hey y’all I am 22 years old I had a miscarriage 3 years ago. I have recently started TTC again with a lot of life things starting to fall into place. I am, as of now 3 days late for AF. Usually it’s right on time with Glow predictions, this will be the very first time since I started using Glow again that it hasn’t been correct . I took a PT this evening I know I should have waited until morning but my SO and I were just so curious and excited we wanted to see what it would say, of course it came back negative. Which is what I was terrified to see. Immediately after I took the test and sat down I started to have cramping in my right side that has continued of and on since. I told myself I’m going to wait until the weekend, first thing in the morning, to take another one just to see if AF arrives. I’m just so curious. I would like some advice on what y’all would do or if any of y’all have gone threw this. Thank you so much in advance 🥰🥰🤞🏻🤞🏻