Please help!!! IB?

JoAna
Girls I am on my 19th cycle day. Don't know when I ovulated. I dint track. Because I fed up with tracking and waiting and business sex. So this month I took a break and had sex when we want. But this evening around 6.30 I found spotting when I wiped. Also I feel sore throat for 4 days and severe back pain and leg pain. What does that mean? Still 8-9 days are there for my AF
UPDATE: this morning I got my periods. What is it? 2 times period in a month? Anyone ever experienced?