How Long Does It Take to Get Pregnant After Depo? Intercourse is required to get pregnant unless you have medical intervention. When naturally getting pregnant, it will take up to six days for the joining of the egg and sperm. Answer This usually takes about 1 to 2 weeks. How long does it take the pregnancy hormones to get out of your system after having the baby? I had a terrible reaction after taking my first and last Depo Provera shot. I have had the same response as you and it has been horrible. It takes longer than 3 months to get out of your system completely. I think you should NOT use depo provera. That has messed up several of my friends. Just how long kind of effort does it take to get it out of your system?? My best friend got the shot a few time … es and SEVEN years later of trying to conceive is unsuccessful. How Long Does It Take For Dogs To Lose Weight How to Lose Excess weight Fast | how to get rid of belly fat for women over 30 Detox Healthy Teas How To Detoxification Iron Skinny Fox Cleansing Tea Reviews. When you’re trying to conceive, you should start taking prenatal vitamins every day. Although we normally associate prenatal multivitamins with pregnant women, studies have shown that women trying to get pregnant can also benefit from taking these vitamins.