I just got of off the iud (Mirena) in October. My first period was in December from the 1st to the 5th. I had sex on the last day of my period and it was unprotected. My period is still not here and today is the first. 21 days from my last period on the 5th I took a pee test and it came up negative. My chest feels sore and my tummy is bloated. I am scared! I do not want to have another baby!!