Hey....I recently told my parents that I was pregnant too... Do you still live with them, or do you guys live together? I think living together would make things a lot easier....I know it did when I told my mom. Well I think it did anyways. At least she knows she won't have to take much responsibility, because we're not living with her.
I waited until I was around 3 months to tell her, just because I was too afraid of what she would say. When me and my bf finally told her, all I said was "so we're having a baby." she was upset and dissapointed, and I gave her some space. She still hasn't completely come around, but I think she will eventually. But it really helps having our own place, because me and my bf aren't stuck under the same room as our parents, with them constantly going on about how we screwed up.
There's really no easy way to break it to them. Chances are, they will be hurt and dissapointed, but they'll eventually get over it. Telling them is definitely one of the hardest things you'll do, but its something that has to be done. My boyfriend was with me when we told my parents, and I think that was a good choice too. The two of you are in this together.
Good luck, and I hope everything works for you!!! <3