This is my opinion. Nowadays. Women should use tampon instead of sanitary pad. It has no weak point even it break virginity for sure. But It might not suitable for some women who had menstrual problems. It is important for tampon. Choose the right size for match your decided capacity. For example "Unicharm, Sofy, Soft Tampon with Applicator, Regular" can handle about 3 ml. If your menstrual blood come over its capacity it would leak outside your body.
In the past. Since I had urine leak problem. There is no incontinence products exist that time. So I have to use sanitary pad to maintain the normal lifestyle. I use sanitary pad for absorb the urine leak (Stress incontinence) and blood (Angiokeratoma of fordyce). I also found it useful for support my masturbation as girl mode. It also for prevent ass pain when I ride bicycle for long journey. I never embarrassing and struggling to use them. It is easy to learn to use them. I might keep secret away form beloved persons. But I openly this to my ex sex partner. In the market nowadays, Incontinence pad is become more popular. I also use it for sometime even its length might insufficient and no wings. The best point of incontinence pad is very large capacity of absorb and keep better smell during put it on.
Without touching the genital, I can orgasm without be noticed anywhere like an ordinary women. Good sanitary pad can keep my private part clean (It absorbs semen as well). Unfortunately, Since I decided to do serious HRT. My penis can not reach the "hard" stage. So I can not do "Syntribate" anymore. For most comfortable. I use women boxer shorts or sanitary shorts with the sanitary pad. Spandex and nylon is better dry than cotton. Sweat makes bad smell.
But cotton women boxer short also good comfortable. I also sew an another crotch gusset layers. Sanitary pad wings can tuck underneath and make it better stay in place. Best sanitary pad length for me is about 250-300 mm. And thickness should not too much slim. Various shapes of sanitary pad might increase leaks while heavy moving. Nowadays. My urine leaks is less occurred than ever. I noticed since I started M2F HRT 10 years ago. My horny was reduced. Erection and ejaculation also reduced. Even 10 years lately I reduce the dosage (Enough for treatment the hair loss) but sometime I push more dose (oral + i.m.) my male boobs is enlarging a little bit. But my genital also more sleepy and seems less urine leak. I think I always let urine come out does not the bad habit. Someone might call that "omorashi" or "fetishism". I do not care. All sanitary pad inside this homepage was measured for dimensions. The DIY tool for test the sanitary pad is easy to understand. It is the moisture meter on the surface of sanitary pad. Day time sanitary pad - Spread 3 ml of colored water every minute for 4 times. Night time sanitary pad - Spread 5 ml of colored water every minute for 4 times.