BCP and accidental pregnancy?

Okay well I've been really stressed and really busy this past month. I managed to take my bcp numerous times late, doubled up once, and missed two active pills completely. I had my last af begin on the 16th of May. I had sex a few times this month but most notably on the 25th. This is notable because the next day I had A LOT of ewcm which I normally don't get on the pill. I went to my gyn and we switched my bc to the patch which I'm supposed to start on once I get my withdrawal bleed this cycle. I'm already on my non active bcp and am about 2-3 days away from my next af. I have had a back ache on and off for a few days, have been exhausted, and my breasts are swollen and tender.  I took this test this morning and I think I see something but I'm might just be overreacting. I plan on taking another test if my period doesn't come as expected. *I haven't started the new bc yet*