I underwent myomectomy via lap before 3 weeks. What is the normal recovery time to get pregnant again? (2 myomas 3*3cm-submucous &intramural).

Unknown. I would have suspected your post op instructions to suggest delaying sex or pregnancy, at least through a couple of normal cycles after the surgery. No sex, no pregnancy, no worry. See your OB and figure it out. If the uterus was possibly weakened with the resections, that could be an issue with a pregnancy and weak wall!