Feeling weird

Me and my boyfriend have been together for about 3 months officially and It’s been going really well. We are both happy and really in love but like the past 2 days I’ve Been on my period and just kinda in a weird headspace and he’s kinda just been doing his own thing. Not ignoring me but ya know but it’s almost like I’m not even there sometimes. I don’t know if I’m just feeling this way cause hormones or if he’s sick of me or what. I don’t know. I’ve tried talking to him about it and it just kinda feel disconnected a little. Is this normal? I’m gonna just stay up ask him tomorrow but it’s kinda stressing me out. I’m really anxious about it. What do you guys think?