Starting the pill again

So I came off the pill in December and I would like to go back on it.

I got my period during the placebo pill week but haven’t had a period since.

I took a pregnancy test about a week or so after my period was late and it was negative. Searching some of the topics on here and it seems like (hopefully) that’s normal.

Since I would like to go back on the pill, can I start my new pack now? Or should I just wait it out until I get my period?