You don't sound pregnant to me. That was a lot of bleeding. I feel nausous sometimes around my period due to hormone fluxuations. So that may be why you were feeling sick.
Hormone fluxuations are what causes morning sickness in PG women...the sharp upturn of estrogen and progesterone given off by your body realizing it's pregnant...caused by the ovaries. They kick into overtime producing this hormone. It usually gets better when the placenta is well formed and takes over feeding baby. Before the placenta takes over, the baby gets nourished by a protien sac left over from fertilization...you could think of it as the white part of an egg...
Usually you don't start feeling morning sickeness till 5-8 weeks PG, depending on the person. Just in time to realize your period is late. Some people don't feel ill at all. (Lucky them!)
But here's a little hope: it is common to have spotting when the fertilized egg implants into the uterus. Buy some HPT in multi packs so they're cheaper and take another test. Then you have some more on stand by to use later in case you're not PG yet. I buy the multi packs from walmart...the walmart generic brand and they work just fine and are cheaper.
If you miss your next period, go to the DR.They won't want to see you if you are pregnant till 8-10 weeks PG anyway so if you wait to see if you miss your next period, and you are already pregnant, you'll still only be 6-8 weeks PG. And if you are newly PG, meaning that between the spotting in Feb nad now you get pregnant, then the DR can do a blood test that will cast out all doubt. Best wishes to you.
5 pregnancies--personal experience