Oh, poor OP. But I assume the pads you have to use (temporarily) are the slim sort. When I 'started' (in 1957, aged 15) all we had were HUGE things, worn with a horrible harness round the waist, to which the loop each end of the pad was fastened. The damn things chafed inner thighs, were horribly obvious during ghastly compulsory games and gym at my school, where we had to wear our navy blue knickers, no 'modesty skirts' until Sixth Form.
Despite being huge and bulky, the sanitary towels (we didn't call them pads) leaked, didn't do anything for 'personal freshness' during a long school day and as for the walk of shame ... from the toilet cubicle to the disposal bin in the cloakroom, while the school's 'mean girls' stood and jeered, sneering stuff like 'Oh look, oldgrandmama's started ... ha ha'. One memorable lesson, our horrible headmistress lumbered into the classroom and barked 'Hands UP all you gals who've started your, ahem, periods ...' A few nervous hands were raised. Head glared silently at the 'offenders' for about half a minute, with an expression that said 'DIRTY gals!' and waddled out of the room without another word.
Ah ... happy days (NOT). I longed to start on Tampax, but my parents would have gone nuts, as only 'fast girls' who'd 'done it' would use the things!
Sorry, little trip down bloody (!) Memory Lane.