First time

Me and my bf had sex on the 21st of October on the second day of ovulation. .. it's the firts time in my life I had spotting. We had sex before like almost every weekend . It was only 2drops of a lil brown spotting..... my ovulation is done now but I still feel tired and a lil nausea. Some say I have to check my breasts but a day after spottin I had one really sensitive nipple for about 2days but its normal now. I feel dizzy , tired , eating more just want bananas an only want bananas, mornings I wake up I feel a lil nausea. ... and grumpy moody