Hi guys I'm so confused with what's going on with my body atm.

My period is a week late and have absolutely no signs of it even showing I've done cheap eBay pregnancy tests and all come back negative.

2 weeks after my last period I had about 5 days of quiet a bit of brown blood could of this been another period? Or could it have been down to a week after having the brown blood I then had a uti and thrush so was on antibiotics thrush cream and I had to insert a thrush pessary I'm scared something may be wrong xx