Testing too soon? Help!

Chelsea • Baby 3 due April 2017 ❤️
Hey everyone! I got my IUD taken out on March 30th, I had sex the day before, day of, and every day since then but 2 days. I feel exhausted and it's not your average I didn't sleep well exhaustion, small backaches every now and then, nauseous with just about anything and everything but it comes in waves. I have taken 2 tests tonight because of how I have been feeling and they were both negative (I took a first response and a clear blue digital). The day I got my IUD removed was actually the day before my period ended, a few days after I had sticky clear CM fluid but for the past week I've had no CM fluid at all. Is it possible I'm pregnant already and having symptoms? How long should I wait to test again? 
Also, I had the Paragaurd so there is no reason it should effect my hormones after being taken out.