Disappointed

Anyone else’s body plays tricks on them while trying to conceive? My cycle is on average around 35 days. We tried so hard to conceive this month (I mean we covered all our bases) this would be my second. However, I’ve experienced sore breasts and low cramps around a week after ovulation. These are symptoms Ive never had before a period. Today, I should be around 13 dpo but I started experiencing brown discharge which I assume is my period. I feel 100% defeated, I feel like my brain tricked me into believing I have conceived. Receiving these negatives is the most disappointing thing ever.