Hi there ~
Low libido or sexual drive is a common complaint among women who have given childbirth. One way to try to overcome this is to find the right sexual stimuli that makes sex more pleasurable. I would advice a lot of foreplay and different ways to please your partner even before penetration. It might be useful to use the stop and go technique to satisfy your partner better. Ultimately you both should find the right way to sexual equilibrium. I hope this helps. Consult a qualified sexologist
if there are other problems.
Take care and have a good one !