Could I be pregnant?¿

So I'm now 6 days late, decided to take a pregnancy test and it came out negative... i should be relived but I'm NEVER late which still has me stressed. I know there's other reasons that can cause periods to be late and not just pregnancy, but should I take a blood test just in case?

I wanna wait a few more days since I'm still hoping my period shows up.

I currently don't use ANY birth control and my boyfriend never uses a condom but we use the "pull out" method. 😅 it's worked pretty well for the past 3 years. Maybe this time we weren't so lucky. 🤷🏼‍♀️😂🤭 We've talked about getting pregnant but we haven't actually tried so this would definitely take us by surprised.

Maybe I'm just overthinking this and I'm not even pregnant. Maybe my period just wants to take its sweet time this month.