How do I reach out to my boyfriend

Me and my boyfriend took a couple days space away from each other- we are in a long distanced relationship at the moment and we had an argument over phone.

So I was the one who suggested maybe he needs some space to get his head back together.

It’s been like 4 days and we haven’t spoke and I’m on my period so just feeling very hormonal, but I feel like this is turning more into a break and I’m hating every second of it.

How is the best way of reaching back out, I want to respect his personal time but I’m just feeling very lonely right now and yeah need some attention ( it feels like weeks).

So yes how do I go about this ladies?