can I ask to see his phone?

So I'm just wondering if it's ok to ask my boyfriend of 5 months if I can see his phone? I don't want to sneak around I just want to ask him. I don't think he's necessarily cheating but I think he's talking to other people. So is it okay to be straight up with him and tell him I don't want to sneak around that I just want to look at his phone? 

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors