Haha I got this a little a few weeks ago. I just ignored it bc it didn't last long and I thought it was weird. I'm 14 weeks now.
I had that at about 8-9 weeks and I think it's the uterus growing. Only thing I could come up with lol. We may be carrying a little high :)
I'm not sure . But sometimes my belly button feels weird. Lol I thought it was just me