Confused! Help!

Megan • MC: 5-17-15:: Lap-7-26-16: Endo warrior. DD born July 2017 🙌🏼💞 DD#2 Due June 2019
I have a question for you girls, 
Yesterday I had a laparoscopy done and my tubes flushed. Dr. Found and took out endo that was on my pelvic for and said my left tube was completely blocked. She told my husband in recovery that she wants me on birth control for 3 months and then we can try. I don't understand as most stories I've read have been that women got pregnant the month after or even two months after. I won't see her until August 10th and I'm trying to get info! Did this happen with any of you girls? Did you get bfp after?? My dr. Knows how badly and important this is to me and my husband as we lost our 1st baby in May 2015 and have struggled to have one since. Please HELP! Xox thank you!!!