While we're on the topic of pregantcy and the female reproductive system i'd like to throw a general question out there...does blood type have anything to do with getting a woman pregnant?

Some guy i work with is claiming his gf is made for him because they just happen to have the rarest form of blood, double O negative. Apparently his rare form of blood prevents women from becoming pregant, and in believing this, he's playing the savior in helping his gf (who was already depressed because she couldn't have kids) have kids.

..yeah, sounds ridiculous, but i've heard crazier shit from this guy.

i saw on the news a couple years ago, a woman who didnt know she was having a baby until she went into labor. she had regular periods every month too. i hear it is very rare for that to happen

WTF? I've never heard of blood type playing a factor.

I don't know if your friend is bullshitting you or not about playing savior. The reason being because I have a freind as well who either can't have kids or will have a really hard time getting pregnant. She's told me before she doesn't want to get married to anyone and that as soon as she's sure she wants to have a child, she'd like to have one with me. When asked, "why me?" she responded with a "you're not going to fall in love with me" comment. This girl is cute and sexy, but she's been through a lot in the relationship thing. I think she's a little messed up in the head from it all. I told her I'd think about it and that it'd have to wait until we're at least 27 yrs old, but if it's going to be virtually impossible then there's nothing wrong hitting it raw dogg a couple of years early! I started laughing while she got pissed because I was reffering to hitting her stuff in a non serious manner when she was being serious.

I doubt it. I had a gf for 2 yrs who was on the pill. Sometimes she would forget to take one but it never mattered. We would have sex all throughout the day, raw dog. She never got pregnant. There for awhile I thought I must be sterol from previous juice usuage. With my next gf I found out I wasn't.

There has to be that 6/10 of a percent, but if the "white pills" are the placebos, then no, normally she would not become pregnant. The placebos are just sugar pills so you don't get out of the habit of taking one every day. Whether or not you take them doesn't make a difference in your likelihood of getting pregnant.

oh and re blood type guy, the only factor of blood type that plays any part is if you have rh factor.

In very rare (and dangerous, for that matter) cases, there is something called an ectopic pregnancy. An ectopic pregnancy is a condition where a fertilized egg settles and grows in any location other than the inner lining of the uterus. The vast majority of ectopic pregnancies occur in the fallopian tube (95%), however, they can occur in other locations, such as the ovary, cervix, and abdominal cavity.

Symptoms of an ectopic pregnancy can often be vague, and include vaginal bleeding, abdominal or pelvic pain (usually stronger on one side), shoulder pain, weakness, or dizziness. These symptoms can also occur in other conditions such as ovarian cysts, miscarriages, or even in normal pregnancy.

(Taken from medicinenet.com)

what's dat?
This bullshitter was not my friend. Just some dishonest sob that got fired for stealing shit from cars....not long after the original post actually.

My aunt had her period for the first three months of her pregnancy. From what I've heard, if you're on the pill, you might be more likely to have your period during pregnancy (if you didn't know you were pregnant and continued taking the pill)

The rH factor = whether your blood type is positive or negative. I have a negative blood type, and it is common practice for women w/ a negative rH factor to be injected with rhogam both while they are pregnant and after the baby is born... at least that's what the obgyn who delivered my son said.
I may have misunderstood, but from what I recall, it had something to do with the possibility of my body rejecting the baby if his rH factor was positive (which it is).
An example would be that if the mother has O- blood and the father has A+, the baby has O+. In my case, my mother is O+, father is AB-, and I am O-. Basically, the baby takes the letter type from the mother, and the rH factor from the father.

The pill isn't 100 percent effective even if you take it exactly as you're supposed to. It IS something like 99.5 percent effective -- but there is always that .5 percent of women who, for whatever reason, it doesn't work perfectly for.

a couple of things..

assuming by the "white pills" you mean the week of placebo pills then those should hold no bearing on having sex w/out taking the pill that week as they have no hormones in them..

you can pretty much only get pregnant during the time of the month that you are ovulating(about half-way into your cycle) and when you are on the pill you do not ovulate(the hormones prevent the releasing of the egg, thus is how BC pills work) therefore by the time you are on your placebo pill you are already past the point in your cycle where you would have been ovulating..generally girls who are on the pill and get pregnant due to missing a pill/taking a pill later around the time of ovulation, thus the release of the egg is not blocked... there are other issues that can contribute to ineffectiveness of the pill, for instance certain prescription drugs like anti-biotics nullify the effects of oral contraceptives..other factors such as strength of the hormones compared to body weight(lower levels have been shown to be ineffective in larger women) but your doctor would know what pills would be effective for your body type, and if you have had no concerns until now then that should not be an issue..

at least i think thats how it works, i'm not a doctor so i wouldn't take that information for absolute fact..but its the general idea :)

bottom line is you shouldn't be too worried.

This part is more or less correct. If an rH negative mother has an rH positive child, and there is mixing of the blood (very likely during pregnancy), then the mother will build up antibodies against the positive rH factor. The next time the mother's body comes into contact with the positive rH factor (i.e., her next pregnancy with an rH positive fetus), her immune system would attack it as it would any other foreign body.

This part...not so much. If I'm remembering correctly from my genetics class, if your mother was O and your father was AB, then you should either be A or B. Your chances for each genotype look like this:

A B
O AO BO
O AO BO

So a cross between an AB and an O has a 50% chance of being A and a 50% chance of being B because A and B are dominant to O.

ETA: As for the rH factor, that is based on both the mother's and the father's genetics, as is the blood type. It is not inherited strictly from the father.

eew science!!! *runs in the other direction*:eek:

Yeah, I was right. Woo, memory!

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