A Sign?

Ok everyone - I am not losing it.  But really need to share.  I just called my husband on our cell phones.  His phone is set to ring - no ringtone.  Instead of ringing I heard softly playing rock music (reminded me of Rachel's music) and then a female voice shouting "Mom"...."Mom".  I answered Hello....who is this...hello.  I heard the word Mom 3 times and then (still no ringing sound) my husband picked up.  He said noone was with him yelling "mom" - the music he was playing did not have that word in the song.
Rationally, I probably crossed wires with someone trying to call their mother and they couldn't hear me answering.  But it also so sounded like the last moment Rachel and I had as we drove off to the hospital.  Her yelling "mom" at me.
Just needed to share.  You don't need to respond.  I know it sounds a little weird, but I also so hope my baby's reaching out to me.  Maybe I'm just grasping as I have been so down lately.  Thanks for listening.