Pregnant after miscarriage with no period??

So I was pregnant and had a chemical pregnancy from the information I gathered. I haven't had another period yet but had sever pain as I have had all times I've found out I was pregnant (1st child born on due date, 1st miscarriage in November and yesterday). I've felt off and yesterday super sick and lost the entirety of my entire Christmas dinner. Had severe pain all night. This same pain is why I tested last time and it came back pregnant.

I took a test on what the app said would be the first day of my period and then again yesterday. Thoughts?