Whether you two orgasm simultaneously or not does not have any effect on whether you get pregnant. You could even get pregnant in a sexual encounter where you didn't orgasm at all.
Im trying my hardest to get pregnant but not letting it show im more lije just enjoying it alot...but is it a better chance if both *** at the same time
Would be WAY too early. Right now, your body is probably ovulating, or getting ready to. This would explain the pain in your breasts. This is the time to be having sex if you're trying to conceive, and this is when you're most fertile.