What are my chances of getting pregnant if I've been on the Depo-Provera shot for 10 months and my boyfriend ejaculated in me for the first time 3 days ago?

Need more info. When was your last shot? If it was 3 months ago or less, then chances are almost none. If your last shot was 10 months ago, chances are high. If your last shot was 10 months ago, then you are not really on it any more.
Almost none. Depoprovera has a less than 1% failure rate @ 10 months of use.
Not good. Of course, more information is needed. The monthly fecundity rate (e.g. Chances of pregnancy in a single cycle is about 20-30%). That's if you're not on anything or coming off of anything. In this scenario, that rate is probably going to be a lot lower.

Related Questions

I got for the first time the Depo-Provera shot he day after I had unprotected sex. He ejaculated in me so I am wondering what are the chances get pregnant?

High. The shot will not protect you until about two weeks after the shot. You could easily conceive if you have ovulated. Read more...
That depends. According to planned parenthood "if you get the birth control shot within the first seven days after the start of your period, you are protected from pregnancy immediately." otherwise you may need back up birth control for the first week after injection. http://www.plannedparenthood.org/health-topics/birth-control/birth-control-shot-depo-provera-4242.htm. Read more...

I have 3 regular periods since I got off Depo-Provera in February was last shot Boyfriend ejaculated in me 11/3 I ovulate 11/7 could I get pregnant?

Here are some ... It's known that ovulation - female fertile time - occurs 2 wks before period and sperm may survive for 3-5 days. If all the events fell as wished and expected, your odd to conceive is very low, but real life tends to fall short of such. So, timing-wise, you're at the very margin of conception. Nonetheless, do HPT soon after missing the regularly expected period and repeat it in 1 wk if the 1st is. Read more...

I had the Depo-Provera shot a week after the start of my last period. What would be the chances to get pregnant if had unprotected sex and he ejaculated in me?

Uncertain risk. Assuming that you had unprotected intercourse after your period, and after the start of the depo shot, then your chances are probably lower than the baseline risk of 15-20%. Given that you imply that you had intercourse not long after starting the depo shot, then the risk is higher than it will be in about a month. Without more information, it is hard to give you a better answer. Check a test! Read more...

I only took the Depo-Provera shot 3 times n I missed my 4th one what are the chances of me getting pregnant?

It depends. If you are a few days off of getting the Depo-Provera provera, (medroxyprogesterone) the chances you have to worry about an unwanted pregnancy is slim. You can use emergency contraception, but i would advise you to see your provider to get back on track and use condoms and spermicide until then. Read more...