Periods and BF

Hi mamas! Hoping all is well ♥️ I got my period back like 4 months PP once I returned back to work. It seems pretty normal for the past few month and has come a day or 2 before or after the estimated date on my period tracker app.

Now I’m 4 days late. I took two pregnancy test (might be too early 🤷🏽‍♀️) to rule it out and both came back negative.

Any breastfeeding mamas that have experienced irregular periods or missed a period? I’m

A FTM and don’t know if this is common or if I should be worried that I’m pregnant again 😬