Yep, I'm definitely in the don't worry about this camp!
I'm surprised your period has started up again too. Mine started up at 9 months postpartum (we nursed 2 years total) and DD really didn't eat solids until 12 months old so I thought that was pretty early.
Also, nursing can do some crazy things to your body at time so don't stress it. I'm not someone who loses much of any weight with nursing and had to struggle with every single pound. It was still definitely worth it to me but I'm just saying.