Every dog is different and individual. The general rule is that it is during the 2nd week that a female will accept a male and allow breeding.
However, some dogs will allow it during the first week of their cycle, so yes, it is possible.
If you do not want your dog bred, she needs to be kept away from any and all males for the full 3 weeks.
Yes
Yes, just as easily as it is possible to get pregnant before marriage. The date and day of the wedding is arbitrary to becoming pregnant.
Weight gain is irrelevant during the first trimester. If you had intercourse and missed a period pregnancy is possible.
A good rule of thumb - if you haven't had a hysterectomy, you could get pregnant.
There is no set number of times. You CAN get pregnant the very first time you have sexual intercourse.
maybe lay off the weed for a bit first.
Yes. Most women ovulate 14 days after their period, but that is MOST NOT ALL. If you think you ovulated 9 days after your period (Which is possible for some women) and you had intercourse (sex) then, yes it is possible.
It could be possible depending on the time that you had sexual intercourse. Depending on if you had sex seemly close to the time of your menstrual cycle. The body may not have had time to lets say "understand" that it is pregnant so it would show in your next period.
Yes, it's highly possible any woman can get pregnant their first time. In fact, it is possible that the woman can get pregnant without pentration of the vagina, or even without orgasm of the male. This is because, immediately following erection, a small amount of pre-ejaculate appears at the tip of the penis, and if this is touched or transferred to the vulva/vagina, the female can get pregnant.
Yes. A woman can become pregnant after her first time. It is an old myth that a woman can not become pregnant after the first time. Unless birth control was used properly, there is always a chance that she is pregnant.
yes. You don't get your period when your pregnant. when you first get pregnant though, some women have very light and short periods but that's it.
Yes, safe period aren't safe only periods of varying probability. Out of couples relying on safe periods a full 19% gets pregnant during the first year.
I had three period when I was pregnant with my first so it is possible but very rare! :-)