tmi...!!!

Melanie • 29 years old, ttc #1, engaged to my best friend ❤

so my period finished on the 23rd june! on 24th i did a total warrior race for charity. the day after i was aching but was fine. then the day after that i started to spot. ive now been bleeding on and off since. not enough to fill a tampon but too much for a pantyliner... this isnt normal... right? today ive started with what feels like period pains! should i see a doctor? my fiance and i have been trying for 2 years now! any advice welcome!