I really jealous of to of my friends?

On Saturday my best friend was worried she was pregnant and as i had a couple of tests i gave her one and she found out she was pregnant and on Sunday my other best friend also got a test off me and she found out she is also pregnant (and they both found out they are about 7 weeks pregnant which i think is funny as they dont no each other is pregnant only i no) they have both properly talked to me about it which is nice but i cant help but feel jealous. Both of my friends no that i really want a baby as my husband had a vasectomy reversal last March but nothing has happened for us yet. Im really happy for my friends but i hate feeling jealous but dont want them to no how i feel but i dont want them to stop talking to me about what they are going through. My friend that found out on Sunday has already got a little boy who is my Godson and i was really jealous when she was pregnant with him ( worse then than now) but i have done a lot for my godson as he is growing up (he is only 2 1/2) but my friend involved me in everything. How can i stop being Jealous of them? I am really happy for them both. p.s before anyone asks my age im 22 and my 2 friends are 21.