I am 27 years old and have a 21/2 year old. I have been trying to get pregnant for 17 months unsuccessfully. My periods very strange lately and I am not sure what is going on. I usually go 30 days between periods and this past month it was late. Every time I am getting my period my breasts are tender to the point of not being able to move comfortably. This month I had spotting a few days and then a very heavy 2 days. My period ended but when my husband and I would have sex I would bleed. Now 3 days after my period ended it has started again and it is heavy and brownish colored. I don't know if I should be concerned or not any help?