It might be taking longer this time...

Paula • Mommy & Daddy to one little sweetheart. Another on the way!
It took us 6 months last time to get pregnant with my daughter, our first. I always heard the 2nd baby happens faster but it seems like this may not be the case. 5 months trying now with no result and I'm trying not to panic. I still have 25 pounds of "baby weight" to lose and am afraid maybe this is why it hasn't happened yet. Any advice?