Had Sex 7th day on BC Pill...Safe?

So I started The Pill on the 14th of April.

This was about a week after I started my period so I just finished my period.

I was told to wait a week before having sex without any other type of contraception when first starting The Pill.

I took it every day, and on the 7th day, April 20th, after I took my pill, I had sex and my fiancé finished inside me.

Since I took all 7 pills, am I safe? Or is there a chance and I wasn’t totally safe until the following day?