I need advice. anyone gone through this? what can it be? should I and when

[~*TTC_BABY#2*~]

should I test? Ok so my last period was really heavy and painful it went from FEB 4th to about the 11th, my hubby and i BD on the 11th 13th 16th 20th. On the 23rd (monday) i felt like i had discharge but i didnt check untill several hours later and it was brown like blood with like stringy pinkish red. and it continued nothing heavy at all nothing like my period i would only see it when i wiped so yesterday and today its still here except its more maroon color now and i still don't need a pad for it. anyone please tell me what this can be 2 periods in one month or implantation bleeding? what are some symptoms of implantation bleeding. when do you guys think it's best to test? I'm not due for my period untill next wed