Just a little nervous!

Hello everyone! I found out October 6th that I was expecting our first baby!  I took a test that morning and it to our surprise positive! (we had been trying for several months) my last period was August 25th so that should have me around 6 weeks. What I'm nervous about though it that I had a really heavy period & it was clotty on September 25. Has anyone else done this??? The heaviness and the clots have me a little worried.  I got the positive pregnancy test after this. & I don't go to the first doctors appointment for a couple weeks.