TTC After Birth Control

I just recently came off my birth control (September 15) I was taking ortho lo and had a normal period for October and November, which i usually get every 25 days and only last for 4 days. But for the month of November after I last got my period, my husband and I were TTC, I thought and he even thought that I was having some pregnancy symptoms because I was getting the upset stomach, headaches, mood swings, soreness, and everything. So when the 25 days came since my last period, i didn't get it, so i waited until the next day just to make sure I didn't get it and took a HPT and it was positive, so just to be sure I took another one and it was showing the 2 lines one which was a faint line, but none the less a positive. I was excited, but over the past 2 days I had a light spotting with was a brownish color and I didn't know if it was implantation bleeding or the start of my period, because the 2 positive HPT were throwing me off. And today I started my period, which is a week late! so instead of 25 days its been 32 days! I was heart broken :-( anyone going through this?!