I need some help! Im 20 years old and my period has always changed until recently. It comes on the fourth or fifth every month for 5 days. My last period was in febuary, I had sex n I missed my march and had sex 10 days after my missed period, its been 12days since then and I spotted thinking it was my period it was a brownish color, my boobs are a little hard but not as soar as when I start my period ive had mild and extrem cramps, fatigue but thats normal for me (low iron) I took a test last night but it said negative. Should I be relieved? Ive also spotted 3 more times but this time its a pale brown. Some one help me please