During the first 1-2 weeks after birth, you’ll find that you’re weeing much more frequently as you’re getting rid of the excess fluid you retained during your pregnancy. While you can be super diligent with your Pelvic Floor training while pregnant, not every part of us bounces-back immediately. Try doing the exercises while you’re sitting down and feeding your baby. Start with gentle pelvic floor contractions as it is normal to feel a bit sore down below following the birth of your baby. Stop if you are in discomfort. You can even start of by simply practicing the squeeze when you pick your baby up.
The main thing is to keep training – it can take up to 3 months to see a little improvement. If you feel like the exercises aren’t working after 3 months, or if you have any questions, have a chat with your doctor and/or your physiotherapist.
Little leaks in pregnancy and after birth.
Read here