Is a Nose Bleed 9 Weeks After Rhinoplasty when Blowing Nose Normal?

I have not had any nosebleeds except for in the couple of days following my rhinoplasty, but today in the shower i was blowing my nose, applying pressure to both sides with my hands and a mild nose bleed started from one nostril. It didn't hurt or anything, but I think I may have blown too hard. Have I caused any problems or damaged my nose? Im so worried! Thank you.