Ok Momma bears,I had gotten the Depo shot and since it didn't go so well due to bleeding the whole…

Ok Momma bears,I had gotten the Depo shot and since it didn't go so well due to bleeding the whole just about 4 months ,i didn't go for my second shot. I noticed I stop bleeding for two weeks but this morning woke up to a stained underwear almost like implantation bleeding or to say dry blood but since this spotting stain this morning there's no menstrual,my question is how long did it take you ladies to get your menstrual cycle or any similar experiences ?(: