Feelings about abortion a week later…

I had an abortion last Friday, it was painless and quick, it has been an emotional rollercoaster but never felt like I regretted it, I know I made the right decision….well today I woke up and felt very emotional and I started crying and I also started to feel like I regret it and I’m not sure how to deal with it because I haven’t felt like that at all, I’m just confused how out of no where now I’m feeling regret…anyone felt like this before ?