missed pills

so I missed 3 days of pills and yesterday would be 4. I took all 4 pills to get me caught up for today. i’m supposed to start my placebo pills next week. and last night I had terrible stomach pains and nausea which they said is normal side effects with taking that many pills. this morning I woke up to somewhat clear/brown discharge. is this normal? is it just body’s reaction from all the horomones I took? or is it possibly more. should I test now or wait until my period arrives?