Uy mama, ang timing ng pills talaga importante, kaya I'd really encourage you to call your OB or go to the clinic ASAP para ma-check, they can give you proper guidance based on your situation and peace of mind.
But just between us, a few of us moms have been through this worry din, delayed period + timing issues with pills can happen, pero marami pang reasons bakit delayed ang period (stress, hormones, etc), so hindi automatic pregnancy. Best talaga na makipag-consult sa doctor mo para ma-confirm at ma-advise kung ano ang next steps, whether it's a test, or balik adjustment ng routine mo. Wishing you well, mama!