AF late, possibly pregnant????

Tiara
I miscarried last April, and a few months ago my fiancé and I decided to try again. Last month I had my annual and my pregnancy test came back negative. But two weeks before my appointment I had my regular scheduled period. Then two days after my period is over I began spotting again. I spotted for a few more days after my annual. Being that I document these things on two different <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period apps</a> I got two different days to begin my period.
One app said Dec. 29th and the other said Jan. 7th. I don't want to get my hopes up, because every time I do I'm disappointed. But I've notice my nipples are sore, which isn't normal for me before or during a cycle. I'm thinking about waiting until Monday to take a test, but I'm really anxious!!!! 😁😁😁😁😁