Number 3 In The SKY????ANY Suggestions or thoughtslll

We were going to see my husbands' mom yesterday....as I have said before, I always look at the clouds when I am riding, hoping I will see a sign....from Ken..in the clouds
Well, yesterday as we traveled down the highway...right in front of me in the sky there was a 
Big 3 perfectly formed.....the 3 was in the blue of the sky...the white clouds were around it.....
I have read that 444 means angels are around.....But I don't know what a 3 means..
Anyone know the what the possible meaning of a Perfect 3....why I didn't take a picture of it ...I had my phone camera...
Any Suggestions...????
I was born in March the 3rd month....Ken died on the 30th....but I don't know if it was related to that....
Sandi