Can ya fall pregnant if on the depo injection and havent had a period?

Yes, it is possible to get pregnant while on the depo injection even if you have not had a period.

The depo injection is a hormonal contraceptive that works by preventing ovulation and thickening the cervical mucus to prevent sperm from reaching the egg. It is very effective at preventing pregnancy, but it does not provide 100% protection.

If you have not had a period while on the depo injection, it is possible that you are pregnant. Some women experience irregular bleeding or spotting while on the depo injection, but if you have not had any bleeding for several months, it is important to take a pregnancy test to rule out pregnancy.

If you are pregnant while on the depo injection, it is important to talk to your doctor. They will be able to advise you on the best course of action.