3's perfect. Right?

So my youngest child is 17 months and 13 days old. This is the age I have a love/hate relationship with. They are so much work because they are getting into everything. They really don't understand the word no (or at least pretend not to) and never stop until they drop. But... they are these perfect little creatures that melt your heart when they smile and are always ready for a kiss. You can see them learning something new everyday. This is also the time I'm usually pregnant. This time I've decided 3's perfect. I'm good, no more kids needed to feel complete. But. My hormones are playing tricks on me. I know I'm done but then this sweet little baby seems to be getting bigger every second of the day and I'm holding on so tight and I can feel his baby days slipping thru my fingers and his toddler days starting. Soon I won't be able to say I still have a baby. I thought I'd be so happy to get here but now all I want to do is stop time. I am literally in my hardest parenting year (next to the teenage ones) with a 5, 3 and 1 year old. Constantly on the move getting somebody something and trying to keep the house from looking like we were robbed. On top of that trying to find a little time for myself because I've been pregnant or breastfeeding for the last 5 years. Now it's time for Mommy to get back in shape and feel pretty and sexy again. So no more baby's for me. I've got the IUD (even though my husband has been begging for a vasectomy since #2) and praying that it works. That's the crazy thing. I KNOW I don't want another one but I can't help but be truly sad that I feel like a beautiful, happy, wonderful part of my life is over and evolving into the next phase. The baby years are almost over for me. I'm enjoying every second I have left and trying to convince myself that 3 is perfect for me. Right?