Hopefully someone will have some insight. I have been the pill for a year now and had to switch. Before this I had no period than out of nowhere she shows up 🤷🏼‍♀️ my last period was June 6 to the 9th

On Saturday the 15 my husband and I had some alone time and well you know Haha I ended up taking me pill really late btw I'm on the mini pill. On the 18 to the 20th I started to spotting really dark brown only when I wiped. Should I be worried about pregnancy? Past week have been so tried and having headaches and also lots of discharge watery... when would I test.? My period comes when it wants...