I am so confused.

Carmen

So I had gotten off my birth control last month. i quit taking it before the month ended. I had two periods. week long. two days apart. within those two days my so and I tried to implant. period came those two days later and I have been feeling some type of way for awhile now. cramps since then. lower back pain. I have taken a few tests but I haven't in a few days. and I was supposed to start today. nothing yet. Needing advice?