Help! Shrinkage????????

Yo so i just finished my first week of the newbie routine (except i havent been doing the kegel exercises but will starting tomorrow) and today (Sunday June 19th) is my rest day. So i went to jack off today and noticed my glans is smaller and has a different shape about it - ive jacked off me meat twice today (once this morning and just now) and still it looks smaller and shaped different.
Has anyone else experienced this before?
Is it because Im doing something wrong? My grip on strectching maybe? My jelq technique?
I NEED HELP I DONT LIKE THIS!!!!
Although i did measure today and I am over 6 inches by a couple 8ths and I am pretty sure I was only 6 flat last time I checked - which is awesome but could just be a good day for me
ANYWAY PLEASE HELP