Is this normal?

Hey everyone!

So, I am TTC baby #2, and have been for 2 months. Now, I had a normal period in July and then in August I had some very light bleeding, but not even enough to be able to use a tampon. I was on birth control (barely) for some of July, but am very forgetful lol

Now I haven't started my period when I was supposed to this month and I've been having off and on symptoms since August, but negative tests.

I had my daughter in May also, so not sure if that would effect my ability to conceive. Although, I thought it would be easier.

Hubby and I want 7 so we are trying to keep them close together lol

Does this sound normal for after baby, or should I try for a blood test? Or wait longer?