sorry to say but childbirth will possibly affect your sex life and yet this means you need some time to heal yourself before engaging into any intimate moments with your husband.
giving birth is pretty much a traumatic process into a woman's life and having a baby that passes in her vagina seems to almost give her that exhaustion of a lifetime. the vagina is still so delicate mind you and yet it takes weeks or even months to heal the injuries like bruised, torn, strained from giving birth.
it is more important that both you as a couple acknowledge that having intimate after giving birth should really take a while so just be patient enough to wait or health might be compromise.
but for me most importantly even after having the postnatal check-up it is also important to consider a woman's condition if she is really ready enough to have it.
one more thing is that before engaging into intercourse, one must also examine the comfortability of the situation just to make yourself at ease when doing it.
For me it is so permissible anyway you have promised each other to give the most of what is needed. If your urine is all ready clear then go on. Sex is a gift from God...