Hello ladies

So I’ve been on the pill, the same brand, for almost 3 years and I’ve never had this happened to me before. So on Friday, I missed my pill and yesterday I had some spotting. I figured it was because I missed Friday’s pill, but today I’m having full on bleeding like I was on my period. I just had my period last week and started week 2 of my new pack so I don’t understand why I’m bleeding so much. I have missed pills before but I never had this much bleeding and I took my pill yesterday and today but I swear it’s like I’m having a second period. What’s going on?? Help me please!!