Hello I had a medical abortion towards the end of February, I got my first period April 6. Now it's may 7 and my period is late. I have been having unprotected sex but in May 3 one day before I was supposed to start my period I took a pregnancy test and it turned out negative. Can I be pregnant ? Did I take the home test to early for an accurate reading? And after the first period shouldn't my cycles be normal and I am in fact late ?