Why does bad have to come with the good?? I need words of encouragement...

Got to see this little bean's heartbeat on ultrasound today at exactly 6 weeks, BUT then I found out that my progesterone isn't rising, actually the opposite.

I found out last week that my progesterone was low, only 8.5. I started giving myself daily injections and within 2 days it went up to 12.3. But 5 days later and still getting daily injections, it went down to 10.6. Now I need to have 2 injections a day. This is rough! I'm crazy emotional AND I am gaining weight like crazy because of the extra hormones.

Anybody have any advice for this? Going through the same thing?