I don't have the chart in front of me, but the chances of a marriage failing shoot up drastically from virgin to 1 prior partner for the wife, and climbs each partner more. Perhaps 50 years ago it wouldn't be a tall task to find a woman who was a virgin, but obviously since then it has gotten significantly more difficult.
Now personally, I had multiple past sexual partners, which I have since been celibate for the last year and a half. It would be a bit too much for me to expect that my wife was perfectly clean of sin as well. I wouldn't turn down a girl who's had maybe 1 or 2 past partners solely because of that. This is assuming that she has returned to the church, realized her prior sins, and prayed to God for forgiveness-as this is what I am doing.
I think a woman with more partners than that is really risky. More than 2 prior boyfriend's means she was just hooking up with guys. I could understand if she was with her boyfriend before, but hooking up at college party's is a big fat no. Her history alone presents a large threat to the marriage, even if she was perfect in every other way.
In summary, one or two prior sexual partners doesn't make her not marriage material-given she recognizes her errors and has other good values. But if she does have that past, you really should think about how good of a wife she would be in other aspects
In looking at the situation, consider causality vs. correlation: It's likely that women who've had many partners tend to be unstable wives because, well, unstable wives/women usually have several sexual partners. I remember a line from a psychology exam for some psychological case of where a man drinks because his wife nags him while his wife claims to nag him because he drinks.
Before I settled down, I went out with every train wreck imaginable so here's my take: The older women (late 20s+) who appeared otherwise good on paper (decent looking, feminine, mentally/financially stable) but with relatively low/high notch counts, I found that the sexually experienced women generally were more receptive to relationships in general while the low notch counts didn't have sex not because they were virtuous or religious, but rather they were lazy, had RIDICULOUS expectations of men, or some kind of sexual psychological issue that had gotten worse with time. I personally believe after having lived with different women and been married is that women do have sex drives, like men, but they are less able to take action to relieve it and this manifests in unhealthy ways (they get more moody, stuck up, etc. which doesn't help the matter) just as horny men may become desperate and nervous which doesn't help to impress women.
The reason why there's such a high ratio of men to women on dating sites is because most young women "convent" themselves by going to work/home/shopping and not putting themselves out there for a relationship waiting to be day-gamed under the perfect circumstances. This is a classic line in a cheesy romance film illustrating how deluded they are:
So my contention is that either way, assuming she's not tatted up, etc, (upper case) THERE IS A REASON WHY SHE'S SINGLE _AND_ has a high/low notch count.
And that reason will be the "cost" of having a relationship with her (amongst other things).
I can understand why men are judgmental about women who rode the cock carousel and then look to settle down with a beta buck later, but this is like getting angry at someone who wins the lottery, spends the money on themselves, and then later looks to marry a nice guy and have him support her. Yeah, it's annoying, but assuming all other things being equal, so what? We judge women for getting abortions and going to hell for that, but how many of those same guys want to volunteer to marry a single mom with a kid from a one night stand?
So putting moral judgements/jealousy aside, the issue then is whether the woman is sufficiently mature (in a good way) to be a decent wife/mother. I think the only way to really know this isn't to look for "red flags" during the first date or even on a profile photo, but rather at least 6 months or more of time in natural settings to see how they react. It's tough at that point then to pull the trigger and decide "My first gut reaction was right, I should dump her" after having emotionally vested, but at the same time, my own gut was wrong and I'm married 15 years to someone who can be amazingly annoying, but is also loyal.
