Thanks for your query.
With the patch, which is a form of hormonal contraception
, such breakthrough and intermittent spotting is not a rare thing.
However, since you would have anxiety, you should perform a home pregnancy
THe kit is positive as early as the first day of the missed period.
Since you had spotting in between, you can perform a pregnancy test within the coming one week, and it would show a positive if you are pregnant.
To be absolutely sure, you need to go for a blood pregnancy test / ultrasound