Tampon question.

So, I've been unfortunate enough to start my period at 5 weeks PP (yaaay). My doctor cleared me to use tampons because I was sick of wearing pads (diapers, IMO) and I've noticed that they aren't staying in as well. I won't lie, I'm lax on my kegels and I've never been super on top of them, but I do do them. I know it will probably get better with time and practice, but are there any other moms out there that are having the same issues?