Is this a sign???

The other day I saw 4 butterflies one after another, could this be a sign or pregnancy new life? I don’t know if I am preggo tho cause they test I took was negative and I been using the pull out method every weekend since September 17 and precum did get in me but not real Sperm and the test it was early but AF is suppose to come in 6 days and I been having symptoms such as mild headache in the morning, then tender nipples, bloated , gassy, all pms symptoms as well and light cramping 2 days ago for a couple of seconds, but now all my symptoms went away expect I had a small sharp pain in my lower left abdomen for a couple seconds and then a little bloat after I eat but other than that everything is gone today, I wouldn’t mind if I am I wasn’t planning on it but I wouldn’t be mad. But could I be and was me seeing the butterflies a sign?