Should I start worrying?

So to start I’m on the mini pill after recently getting my IUD out in July. My last “cycle” was only two days long 9/5-9/6. Last week I was on a trip and forgot to take my pill on Monday 9/10 so I doubled up the next day (Tuesday) and took it the following day (Wednesday) on time. On 9/13 (Thursday) my purse was stolen and it had my pills in them so, obviously I wasn’t able to take my bc. What makes me nervous was I had sex Monday, Tuesday and Thursday last week.

Should I start worrying? I’m a little paranoid when it comes to my bc and I clearly messed up... 🙄 please no hate, I didn’t intend to mess up and miss a day, then get my wallet stolen.

I also forgot to mention that two days ago I was having cramps in my lower abdomen, and low back cramps which I never have. In addition I was spotting a bit, some brown discharge. Just enough to show on a panty liner.