how confusing can it be??

My bf and I are trying to conceive....without success so far. I have been tracking my period with this app and all seemed on track but I'm pretty sure I missed my ovulation time on the weekend. We went to a friends birthday, had a few drinks had sex and went to sleep. I had a small bit of brown blood discharge yesterday and a little blood this morning so I thought it's period time and time to try again next month. But I've had no more blood all day and all night.... is there a possibility that I may be pregnant and still lose a little blood? Should I just wait and take a test in a few days??