Have any Mommas gone thru this??

Hello ladies, Mommas just wondering of any of you out there have gone thru with what seems for me, to be pregnant again after my baby turn three months two days ago, it seems as how the calculation is setting me to be 4 weeks and 2 days today. I had struggle before my second baby to get pregnant again for about almost 2 years without any luck and now going thru another pregnancy with a three month old baby it seems unreal I am in total shock. If you dont have anything nice to say don't say it, I know i am not the only Momma that has gone thru this, just need yoir input and how did you over come it.