Meilleure réponse: Its really hard to get pregnant on depo, but then again no contraceptive is 100% effective. Sometimes the shot can give side affects that resmble pregnancy like symptoms. The best thing to do is if you have a gut feeling that you just know something is up and you might be pregnant, dont listen. I Got Pregnant on Depo-Provera Only 1 out of 99 women get pregnant on Depo-Provera—and Olivia was one of them. See why she didn't discover the pregnancy until months later. I got my first shot in January. Around the middle of March I started bleeding really heavily and was told that the needle was wearing off and I needed to get another one. I didn't get another needle until the 3rd of this month. I had unprotected sex between the time I stopped bleeding and got the needle. Now I'm feeling really. I never had any problems while on it. A nurse once told me it stays in your system longer then any other birth control. I was off depo at least 5 yrs, with no birth control and unprotected sex before I became pregnant. Things You Can Do to Get Pregnant Fast After Stopping Depo Shot. Pregnancy after Depo Provera can take a while, and you need to be patient as well as persistent in your efforts to conceive. You should get your first Depo Provera shot during the first five days of your period to make sure that you're not pregnant. If you get the shot at any other time in your cycle, you should have a pregnancy test done to rule out pregnancy before starting Depo Provera. uhm,you're pregnant definitely. you did it,you'll have the baby and diee,ahaah. nah,uh yeah suree you can't get pregnant on depo provera. ive been on depo for 2 years and i dont use condoms i was wondering how easy it is to get pregnant. I started the depo-provera shot january 08. Last month, (november 09) i was on antibiotics. I was due for a shot this month (december 09) but decided to stop getting it. I've been feeling pregnant. My husband says that the antibiotics wouldn't affect the shot but I think they could. All I hear from other sites is how hard it is. Get Your Depo Provera Birth Control Shot At The Right Time Your chances of getting pregnant increase if you do not get your shot at the right time. When you start Depo, you will have to get your birth control shot during the first 7 days of your menstrual cycle.